![Darrick J. Wong](/assets/img/avatar_default.png)
Widen the incore inode's i_delayed_blks counter to be a 64-bit integer. This is necessary to fix an integer overflow problem that can be reproduced easily now that we use the counter to track blocks that are assigned to the inode in memory but not on disk. This includes actual delalloc reservations as well as real extents in the COW fork that are waiting to be remapped into the data fork. These 'delayed mapping' blocks can easily exceed 2^32 blocks if one creates a very large sparse file of size approximately 2^33 bytes with one byte written every 2^23 bytes, sets a very large COW extent size hint of 2^23 blocks, reflinks the first file into a second file, and then writes a single byte every 2^23 blocks in the original file. When this happens, we'll try to create approximately 1024 2^23 extent reservations in the COW fork, which will overflow the counter and cause problems. Note that on x64 we end up filling a 4-byte gap in the structure so this doesn't increase the incore size. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
1964 lines
47 KiB
C
1964 lines
47 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#include "xfs.h"
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#include "xfs_fs.h"
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#include "xfs_shared.h"
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#include "xfs_format.h"
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#include "xfs_log_format.h"
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#include "xfs_trans_resv.h"
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#include "xfs_bit.h"
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#include "xfs_sb.h"
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#include "xfs_mount.h"
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#include "xfs_inode.h"
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#include "xfs_ialloc.h"
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#include "xfs_itable.h"
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#include "xfs_quota.h"
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#include "xfs_error.h"
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#include "xfs_bmap.h"
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#include "xfs_bmap_btree.h"
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#include "xfs_bmap_util.h"
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#include "xfs_trans.h"
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#include "xfs_trans_space.h"
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#include "xfs_qm.h"
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#include "xfs_trace.h"
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#include "xfs_icache.h"
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#include "xfs_cksum.h"
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/*
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* The global quota manager. There is only one of these for the entire
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* system, _not_ one per file system. XQM keeps track of the overall
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* quota functionality, including maintaining the freelist and hash
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* tables of dquots.
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*/
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STATIC int xfs_qm_init_quotainos(xfs_mount_t *);
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STATIC int xfs_qm_init_quotainfo(xfs_mount_t *);
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STATIC void xfs_qm_destroy_quotainos(xfs_quotainfo_t *qi);
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STATIC void xfs_qm_dqfree_one(struct xfs_dquot *dqp);
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/*
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* We use the batch lookup interface to iterate over the dquots as it
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* currently is the only interface into the radix tree code that allows
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* fuzzy lookups instead of exact matches. Holding the lock over multiple
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* operations is fine as all callers are used either during mount/umount
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* or quotaoff.
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*/
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#define XFS_DQ_LOOKUP_BATCH 32
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STATIC int
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xfs_qm_dquot_walk(
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struct xfs_mount *mp,
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int type,
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int (*execute)(struct xfs_dquot *dqp, void *data),
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void *data)
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{
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struct xfs_quotainfo *qi = mp->m_quotainfo;
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struct radix_tree_root *tree = xfs_dquot_tree(qi, type);
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uint32_t next_index;
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int last_error = 0;
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int skipped;
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int nr_found;
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restart:
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skipped = 0;
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next_index = 0;
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nr_found = 0;
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while (1) {
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struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH];
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int error = 0;
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int i;
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mutex_lock(&qi->qi_tree_lock);
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nr_found = radix_tree_gang_lookup(tree, (void **)batch,
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next_index, XFS_DQ_LOOKUP_BATCH);
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if (!nr_found) {
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mutex_unlock(&qi->qi_tree_lock);
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break;
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}
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for (i = 0; i < nr_found; i++) {
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struct xfs_dquot *dqp = batch[i];
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next_index = be32_to_cpu(dqp->q_core.d_id) + 1;
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error = execute(batch[i], data);
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if (error == -EAGAIN) {
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skipped++;
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continue;
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}
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if (error && last_error != -EFSCORRUPTED)
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last_error = error;
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}
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mutex_unlock(&qi->qi_tree_lock);
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/* bail out if the filesystem is corrupted. */
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if (last_error == -EFSCORRUPTED) {
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skipped = 0;
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break;
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}
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/* we're done if id overflows back to zero */
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if (!next_index)
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break;
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}
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if (skipped) {
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delay(1);
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goto restart;
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}
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return last_error;
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}
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/*
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* Purge a dquot from all tracking data structures and free it.
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*/
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STATIC int
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xfs_qm_dqpurge(
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struct xfs_dquot *dqp,
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void *data)
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{
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struct xfs_mount *mp = dqp->q_mount;
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struct xfs_quotainfo *qi = mp->m_quotainfo;
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xfs_dqlock(dqp);
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if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) {
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xfs_dqunlock(dqp);
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return -EAGAIN;
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}
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dqp->dq_flags |= XFS_DQ_FREEING;
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xfs_dqflock(dqp);
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/*
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* If we are turning this type of quotas off, we don't care
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* about the dirty metadata sitting in this dquot. OTOH, if
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* we're unmounting, we do care, so we flush it and wait.
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*/
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if (XFS_DQ_IS_DIRTY(dqp)) {
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struct xfs_buf *bp = NULL;
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int error;
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/*
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* We don't care about getting disk errors here. We need
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* to purge this dquot anyway, so we go ahead regardless.
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*/
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error = xfs_qm_dqflush(dqp, &bp);
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if (!error) {
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error = xfs_bwrite(bp);
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xfs_buf_relse(bp);
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}
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xfs_dqflock(dqp);
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}
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ASSERT(atomic_read(&dqp->q_pincount) == 0);
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ASSERT(XFS_FORCED_SHUTDOWN(mp) ||
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!test_bit(XFS_LI_IN_AIL, &dqp->q_logitem.qli_item.li_flags));
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xfs_dqfunlock(dqp);
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xfs_dqunlock(dqp);
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radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags),
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be32_to_cpu(dqp->q_core.d_id));
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qi->qi_dquots--;
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/*
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* We move dquots to the freelist as soon as their reference count
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* hits zero, so it really should be on the freelist here.
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*/
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ASSERT(!list_empty(&dqp->q_lru));
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list_lru_del(&qi->qi_lru, &dqp->q_lru);
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XFS_STATS_DEC(mp, xs_qm_dquot_unused);
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xfs_qm_dqdestroy(dqp);
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return 0;
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}
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/*
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* Purge the dquot cache.
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*/
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void
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xfs_qm_dqpurge_all(
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struct xfs_mount *mp,
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uint flags)
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{
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if (flags & XFS_QMOPT_UQUOTA)
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xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge, NULL);
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if (flags & XFS_QMOPT_GQUOTA)
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xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge, NULL);
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if (flags & XFS_QMOPT_PQUOTA)
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xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge, NULL);
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}
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/*
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* Just destroy the quotainfo structure.
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*/
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void
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xfs_qm_unmount(
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struct xfs_mount *mp)
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{
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if (mp->m_quotainfo) {
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xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL);
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xfs_qm_destroy_quotainfo(mp);
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}
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}
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/*
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* Called from the vfsops layer.
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*/
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void
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xfs_qm_unmount_quotas(
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xfs_mount_t *mp)
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{
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/*
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* Release the dquots that root inode, et al might be holding,
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* before we flush quotas and blow away the quotainfo structure.
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*/
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ASSERT(mp->m_rootip);
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xfs_qm_dqdetach(mp->m_rootip);
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if (mp->m_rbmip)
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xfs_qm_dqdetach(mp->m_rbmip);
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if (mp->m_rsumip)
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xfs_qm_dqdetach(mp->m_rsumip);
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/*
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* Release the quota inodes.
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*/
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if (mp->m_quotainfo) {
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if (mp->m_quotainfo->qi_uquotaip) {
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xfs_irele(mp->m_quotainfo->qi_uquotaip);
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mp->m_quotainfo->qi_uquotaip = NULL;
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}
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if (mp->m_quotainfo->qi_gquotaip) {
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xfs_irele(mp->m_quotainfo->qi_gquotaip);
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mp->m_quotainfo->qi_gquotaip = NULL;
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}
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if (mp->m_quotainfo->qi_pquotaip) {
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xfs_irele(mp->m_quotainfo->qi_pquotaip);
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mp->m_quotainfo->qi_pquotaip = NULL;
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}
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}
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}
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STATIC int
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xfs_qm_dqattach_one(
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xfs_inode_t *ip,
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xfs_dqid_t id,
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uint type,
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bool doalloc,
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xfs_dquot_t **IO_idqpp)
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{
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xfs_dquot_t *dqp;
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int error;
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ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
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error = 0;
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/*
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* See if we already have it in the inode itself. IO_idqpp is &i_udquot
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* or &i_gdquot. This made the code look weird, but made the logic a lot
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* simpler.
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*/
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dqp = *IO_idqpp;
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if (dqp) {
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trace_xfs_dqattach_found(dqp);
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return 0;
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}
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/*
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* Find the dquot from somewhere. This bumps the reference count of
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* dquot and returns it locked. This can return ENOENT if dquot didn't
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* exist on disk and we didn't ask it to allocate; ESRCH if quotas got
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* turned off suddenly.
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*/
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error = xfs_qm_dqget_inode(ip, type, doalloc, &dqp);
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if (error)
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return error;
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trace_xfs_dqattach_get(dqp);
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/*
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* dqget may have dropped and re-acquired the ilock, but it guarantees
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* that the dquot returned is the one that should go in the inode.
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*/
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*IO_idqpp = dqp;
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xfs_dqunlock(dqp);
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return 0;
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}
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static bool
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xfs_qm_need_dqattach(
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struct xfs_inode *ip)
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{
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struct xfs_mount *mp = ip->i_mount;
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if (!XFS_IS_QUOTA_RUNNING(mp))
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return false;
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if (!XFS_IS_QUOTA_ON(mp))
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return false;
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if (!XFS_NOT_DQATTACHED(mp, ip))
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return false;
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if (xfs_is_quota_inode(&mp->m_sb, ip->i_ino))
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return false;
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return true;
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}
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/*
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* Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON
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* into account.
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* If @doalloc is true, the dquot(s) will be allocated if needed.
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* Inode may get unlocked and relocked in here, and the caller must deal with
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* the consequences.
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*/
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int
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xfs_qm_dqattach_locked(
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xfs_inode_t *ip,
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bool doalloc)
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{
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xfs_mount_t *mp = ip->i_mount;
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int error = 0;
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if (!xfs_qm_need_dqattach(ip))
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return 0;
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ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
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if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) {
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error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER,
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doalloc, &ip->i_udquot);
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if (error)
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goto done;
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ASSERT(ip->i_udquot);
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}
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if (XFS_IS_GQUOTA_ON(mp) && !ip->i_gdquot) {
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error = xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP,
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doalloc, &ip->i_gdquot);
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if (error)
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goto done;
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ASSERT(ip->i_gdquot);
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}
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if (XFS_IS_PQUOTA_ON(mp) && !ip->i_pdquot) {
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error = xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ,
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doalloc, &ip->i_pdquot);
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if (error)
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goto done;
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ASSERT(ip->i_pdquot);
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}
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done:
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/*
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* Don't worry about the dquots that we may have attached before any
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* error - they'll get detached later if it has not already been done.
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*/
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ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
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return error;
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}
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int
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xfs_qm_dqattach(
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struct xfs_inode *ip)
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{
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int error;
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if (!xfs_qm_need_dqattach(ip))
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return 0;
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xfs_ilock(ip, XFS_ILOCK_EXCL);
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error = xfs_qm_dqattach_locked(ip, false);
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xfs_iunlock(ip, XFS_ILOCK_EXCL);
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return error;
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}
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/*
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* Release dquots (and their references) if any.
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* The inode should be locked EXCL except when this's called by
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* xfs_ireclaim.
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*/
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void
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xfs_qm_dqdetach(
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xfs_inode_t *ip)
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{
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if (!(ip->i_udquot || ip->i_gdquot || ip->i_pdquot))
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return;
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trace_xfs_dquot_dqdetach(ip);
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ASSERT(!xfs_is_quota_inode(&ip->i_mount->m_sb, ip->i_ino));
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if (ip->i_udquot) {
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xfs_qm_dqrele(ip->i_udquot);
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ip->i_udquot = NULL;
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}
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if (ip->i_gdquot) {
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xfs_qm_dqrele(ip->i_gdquot);
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ip->i_gdquot = NULL;
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}
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if (ip->i_pdquot) {
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xfs_qm_dqrele(ip->i_pdquot);
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ip->i_pdquot = NULL;
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}
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}
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struct xfs_qm_isolate {
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struct list_head buffers;
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struct list_head dispose;
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};
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static enum lru_status
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xfs_qm_dquot_isolate(
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struct list_head *item,
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struct list_lru_one *lru,
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spinlock_t *lru_lock,
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void *arg)
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__releases(lru_lock) __acquires(lru_lock)
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{
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struct xfs_dquot *dqp = container_of(item,
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struct xfs_dquot, q_lru);
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struct xfs_qm_isolate *isol = arg;
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if (!xfs_dqlock_nowait(dqp))
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goto out_miss_busy;
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/*
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* This dquot has acquired a reference in the meantime remove it from
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* the freelist and try again.
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*/
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if (dqp->q_nrefs) {
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xfs_dqunlock(dqp);
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XFS_STATS_INC(dqp->q_mount, xs_qm_dqwants);
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trace_xfs_dqreclaim_want(dqp);
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list_lru_isolate(lru, &dqp->q_lru);
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XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot_unused);
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return LRU_REMOVED;
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}
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/*
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* If the dquot is dirty, flush it. If it's already being flushed, just
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* skip it so there is time for the IO to complete before we try to
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* reclaim it again on the next LRU pass.
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*/
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if (!xfs_dqflock_nowait(dqp)) {
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xfs_dqunlock(dqp);
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goto out_miss_busy;
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}
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if (XFS_DQ_IS_DIRTY(dqp)) {
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struct xfs_buf *bp = NULL;
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int error;
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trace_xfs_dqreclaim_dirty(dqp);
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/* we have to drop the LRU lock to flush the dquot */
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spin_unlock(lru_lock);
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error = xfs_qm_dqflush(dqp, &bp);
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if (error)
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goto out_unlock_dirty;
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xfs_buf_delwri_queue(bp, &isol->buffers);
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xfs_buf_relse(bp);
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goto out_unlock_dirty;
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}
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xfs_dqfunlock(dqp);
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/*
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* Prevent lookups now that we are past the point of no return.
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*/
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dqp->dq_flags |= XFS_DQ_FREEING;
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xfs_dqunlock(dqp);
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ASSERT(dqp->q_nrefs == 0);
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list_lru_isolate_move(lru, &dqp->q_lru, &isol->dispose);
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XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot_unused);
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trace_xfs_dqreclaim_done(dqp);
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XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaims);
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return LRU_REMOVED;
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out_miss_busy:
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trace_xfs_dqreclaim_busy(dqp);
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|
XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaim_misses);
|
|
return LRU_SKIP;
|
|
|
|
out_unlock_dirty:
|
|
trace_xfs_dqreclaim_busy(dqp);
|
|
XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaim_misses);
|
|
xfs_dqunlock(dqp);
|
|
spin_lock(lru_lock);
|
|
return LRU_RETRY;
|
|
}
|
|
|
|
static unsigned long
|
|
xfs_qm_shrink_scan(
|
|
struct shrinker *shrink,
|
|
struct shrink_control *sc)
|
|
{
|
|
struct xfs_quotainfo *qi = container_of(shrink,
|
|
struct xfs_quotainfo, qi_shrinker);
|
|
struct xfs_qm_isolate isol;
|
|
unsigned long freed;
|
|
int error;
|
|
|
|
if ((sc->gfp_mask & (__GFP_FS|__GFP_DIRECT_RECLAIM)) != (__GFP_FS|__GFP_DIRECT_RECLAIM))
|
|
return 0;
|
|
|
|
INIT_LIST_HEAD(&isol.buffers);
|
|
INIT_LIST_HEAD(&isol.dispose);
|
|
|
|
freed = list_lru_shrink_walk(&qi->qi_lru, sc,
|
|
xfs_qm_dquot_isolate, &isol);
|
|
|
|
error = xfs_buf_delwri_submit(&isol.buffers);
|
|
if (error)
|
|
xfs_warn(NULL, "%s: dquot reclaim failed", __func__);
|
|
|
|
while (!list_empty(&isol.dispose)) {
|
|
struct xfs_dquot *dqp;
|
|
|
|
dqp = list_first_entry(&isol.dispose, struct xfs_dquot, q_lru);
|
|
list_del_init(&dqp->q_lru);
|
|
xfs_qm_dqfree_one(dqp);
|
|
}
|
|
|
|
return freed;
|
|
}
|
|
|
|
static unsigned long
|
|
xfs_qm_shrink_count(
|
|
struct shrinker *shrink,
|
|
struct shrink_control *sc)
|
|
{
|
|
struct xfs_quotainfo *qi = container_of(shrink,
|
|
struct xfs_quotainfo, qi_shrinker);
|
|
|
|
return list_lru_shrink_count(&qi->qi_lru, sc);
|
|
}
|
|
|
|
STATIC void
|
|
xfs_qm_set_defquota(
|
|
xfs_mount_t *mp,
|
|
uint type,
|
|
xfs_quotainfo_t *qinf)
|
|
{
|
|
xfs_dquot_t *dqp;
|
|
struct xfs_def_quota *defq;
|
|
struct xfs_disk_dquot *ddqp;
|
|
int error;
|
|
|
|
error = xfs_qm_dqget_uncached(mp, 0, type, &dqp);
|
|
if (error)
|
|
return;
|
|
|
|
ddqp = &dqp->q_core;
|
|
defq = xfs_get_defquota(dqp, qinf);
|
|
|
|
/*
|
|
* Timers and warnings have been already set, let's just set the
|
|
* default limits for this quota type
|
|
*/
|
|
defq->bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit);
|
|
defq->bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit);
|
|
defq->ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit);
|
|
defq->isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit);
|
|
defq->rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit);
|
|
defq->rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit);
|
|
xfs_qm_dqdestroy(dqp);
|
|
}
|
|
|
|
/* Initialize quota time limits from the root dquot. */
|
|
static void
|
|
xfs_qm_init_timelimits(
|
|
struct xfs_mount *mp,
|
|
struct xfs_quotainfo *qinf)
|
|
{
|
|
struct xfs_disk_dquot *ddqp;
|
|
struct xfs_dquot *dqp;
|
|
uint type;
|
|
int error;
|
|
|
|
qinf->qi_btimelimit = XFS_QM_BTIMELIMIT;
|
|
qinf->qi_itimelimit = XFS_QM_ITIMELIMIT;
|
|
qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT;
|
|
qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT;
|
|
qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT;
|
|
qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT;
|
|
|
|
/*
|
|
* We try to get the limits from the superuser's limits fields.
|
|
* This is quite hacky, but it is standard quota practice.
|
|
*
|
|
* Since we may not have done a quotacheck by this point, just read
|
|
* the dquot without attaching it to any hashtables or lists.
|
|
*
|
|
* Timers and warnings are globally set by the first timer found in
|
|
* user/group/proj quota types, otherwise a default value is used.
|
|
* This should be split into different fields per quota type.
|
|
*/
|
|
if (XFS_IS_UQUOTA_RUNNING(mp))
|
|
type = XFS_DQ_USER;
|
|
else if (XFS_IS_GQUOTA_RUNNING(mp))
|
|
type = XFS_DQ_GROUP;
|
|
else
|
|
type = XFS_DQ_PROJ;
|
|
error = xfs_qm_dqget_uncached(mp, 0, type, &dqp);
|
|
if (error)
|
|
return;
|
|
|
|
ddqp = &dqp->q_core;
|
|
/*
|
|
* The warnings and timers set the grace period given to
|
|
* a user or group before he or she can not perform any
|
|
* more writing. If it is zero, a default is used.
|
|
*/
|
|
if (ddqp->d_btimer)
|
|
qinf->qi_btimelimit = be32_to_cpu(ddqp->d_btimer);
|
|
if (ddqp->d_itimer)
|
|
qinf->qi_itimelimit = be32_to_cpu(ddqp->d_itimer);
|
|
if (ddqp->d_rtbtimer)
|
|
qinf->qi_rtbtimelimit = be32_to_cpu(ddqp->d_rtbtimer);
|
|
if (ddqp->d_bwarns)
|
|
qinf->qi_bwarnlimit = be16_to_cpu(ddqp->d_bwarns);
|
|
if (ddqp->d_iwarns)
|
|
qinf->qi_iwarnlimit = be16_to_cpu(ddqp->d_iwarns);
|
|
if (ddqp->d_rtbwarns)
|
|
qinf->qi_rtbwarnlimit = be16_to_cpu(ddqp->d_rtbwarns);
|
|
|
|
xfs_qm_dqdestroy(dqp);
|
|
}
|
|
|
|
/*
|
|
* This initializes all the quota information that's kept in the
|
|
* mount structure
|
|
*/
|
|
STATIC int
|
|
xfs_qm_init_quotainfo(
|
|
struct xfs_mount *mp)
|
|
{
|
|
struct xfs_quotainfo *qinf;
|
|
int error;
|
|
|
|
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
|
|
|
|
qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP);
|
|
|
|
error = list_lru_init(&qinf->qi_lru);
|
|
if (error)
|
|
goto out_free_qinf;
|
|
|
|
/*
|
|
* See if quotainodes are setup, and if not, allocate them,
|
|
* and change the superblock accordingly.
|
|
*/
|
|
error = xfs_qm_init_quotainos(mp);
|
|
if (error)
|
|
goto out_free_lru;
|
|
|
|
INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS);
|
|
INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS);
|
|
INIT_RADIX_TREE(&qinf->qi_pquota_tree, GFP_NOFS);
|
|
mutex_init(&qinf->qi_tree_lock);
|
|
|
|
/* mutex used to serialize quotaoffs */
|
|
mutex_init(&qinf->qi_quotaofflock);
|
|
|
|
/* Precalc some constants */
|
|
qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB);
|
|
qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(qinf->qi_dqchunklen);
|
|
|
|
mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD);
|
|
|
|
xfs_qm_init_timelimits(mp, qinf);
|
|
|
|
if (XFS_IS_UQUOTA_RUNNING(mp))
|
|
xfs_qm_set_defquota(mp, XFS_DQ_USER, qinf);
|
|
if (XFS_IS_GQUOTA_RUNNING(mp))
|
|
xfs_qm_set_defquota(mp, XFS_DQ_GROUP, qinf);
|
|
if (XFS_IS_PQUOTA_RUNNING(mp))
|
|
xfs_qm_set_defquota(mp, XFS_DQ_PROJ, qinf);
|
|
|
|
qinf->qi_shrinker.count_objects = xfs_qm_shrink_count;
|
|
qinf->qi_shrinker.scan_objects = xfs_qm_shrink_scan;
|
|
qinf->qi_shrinker.seeks = DEFAULT_SEEKS;
|
|
qinf->qi_shrinker.flags = SHRINKER_NUMA_AWARE;
|
|
|
|
error = register_shrinker(&qinf->qi_shrinker);
|
|
if (error)
|
|
goto out_free_inos;
|
|
|
|
return 0;
|
|
|
|
out_free_inos:
|
|
mutex_destroy(&qinf->qi_quotaofflock);
|
|
mutex_destroy(&qinf->qi_tree_lock);
|
|
xfs_qm_destroy_quotainos(qinf);
|
|
out_free_lru:
|
|
list_lru_destroy(&qinf->qi_lru);
|
|
out_free_qinf:
|
|
kmem_free(qinf);
|
|
mp->m_quotainfo = NULL;
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Gets called when unmounting a filesystem or when all quotas get
|
|
* turned off.
|
|
* This purges the quota inodes, destroys locks and frees itself.
|
|
*/
|
|
void
|
|
xfs_qm_destroy_quotainfo(
|
|
xfs_mount_t *mp)
|
|
{
|
|
xfs_quotainfo_t *qi;
|
|
|
|
qi = mp->m_quotainfo;
|
|
ASSERT(qi != NULL);
|
|
|
|
unregister_shrinker(&qi->qi_shrinker);
|
|
list_lru_destroy(&qi->qi_lru);
|
|
xfs_qm_destroy_quotainos(qi);
|
|
mutex_destroy(&qi->qi_tree_lock);
|
|
mutex_destroy(&qi->qi_quotaofflock);
|
|
kmem_free(qi);
|
|
mp->m_quotainfo = NULL;
|
|
}
|
|
|
|
/*
|
|
* Create an inode and return with a reference already taken, but unlocked
|
|
* This is how we create quota inodes
|
|
*/
|
|
STATIC int
|
|
xfs_qm_qino_alloc(
|
|
xfs_mount_t *mp,
|
|
xfs_inode_t **ip,
|
|
uint flags)
|
|
{
|
|
xfs_trans_t *tp;
|
|
int error;
|
|
bool need_alloc = true;
|
|
|
|
*ip = NULL;
|
|
/*
|
|
* With superblock that doesn't have separate pquotino, we
|
|
* share an inode between gquota and pquota. If the on-disk
|
|
* superblock has GQUOTA and the filesystem is now mounted
|
|
* with PQUOTA, just use sb_gquotino for sb_pquotino and
|
|
* vice-versa.
|
|
*/
|
|
if (!xfs_sb_version_has_pquotino(&mp->m_sb) &&
|
|
(flags & (XFS_QMOPT_PQUOTA|XFS_QMOPT_GQUOTA))) {
|
|
xfs_ino_t ino = NULLFSINO;
|
|
|
|
if ((flags & XFS_QMOPT_PQUOTA) &&
|
|
(mp->m_sb.sb_gquotino != NULLFSINO)) {
|
|
ino = mp->m_sb.sb_gquotino;
|
|
ASSERT(mp->m_sb.sb_pquotino == NULLFSINO);
|
|
} else if ((flags & XFS_QMOPT_GQUOTA) &&
|
|
(mp->m_sb.sb_pquotino != NULLFSINO)) {
|
|
ino = mp->m_sb.sb_pquotino;
|
|
ASSERT(mp->m_sb.sb_gquotino == NULLFSINO);
|
|
}
|
|
if (ino != NULLFSINO) {
|
|
error = xfs_iget(mp, NULL, ino, 0, 0, ip);
|
|
if (error)
|
|
return error;
|
|
mp->m_sb.sb_gquotino = NULLFSINO;
|
|
mp->m_sb.sb_pquotino = NULLFSINO;
|
|
need_alloc = false;
|
|
}
|
|
}
|
|
|
|
error = xfs_trans_alloc(mp, &M_RES(mp)->tr_create,
|
|
XFS_QM_QINOCREATE_SPACE_RES(mp), 0, 0, &tp);
|
|
if (error)
|
|
return error;
|
|
|
|
if (need_alloc) {
|
|
error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, ip);
|
|
if (error) {
|
|
xfs_trans_cancel(tp);
|
|
return error;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Make the changes in the superblock, and log those too.
|
|
* sbfields arg may contain fields other than *QUOTINO;
|
|
* VERSIONNUM for example.
|
|
*/
|
|
spin_lock(&mp->m_sb_lock);
|
|
if (flags & XFS_QMOPT_SBVERSION) {
|
|
ASSERT(!xfs_sb_version_hasquota(&mp->m_sb));
|
|
|
|
xfs_sb_version_addquota(&mp->m_sb);
|
|
mp->m_sb.sb_uquotino = NULLFSINO;
|
|
mp->m_sb.sb_gquotino = NULLFSINO;
|
|
mp->m_sb.sb_pquotino = NULLFSINO;
|
|
|
|
/* qflags will get updated fully _after_ quotacheck */
|
|
mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT;
|
|
}
|
|
if (flags & XFS_QMOPT_UQUOTA)
|
|
mp->m_sb.sb_uquotino = (*ip)->i_ino;
|
|
else if (flags & XFS_QMOPT_GQUOTA)
|
|
mp->m_sb.sb_gquotino = (*ip)->i_ino;
|
|
else
|
|
mp->m_sb.sb_pquotino = (*ip)->i_ino;
|
|
spin_unlock(&mp->m_sb_lock);
|
|
xfs_log_sb(tp);
|
|
|
|
error = xfs_trans_commit(tp);
|
|
if (error) {
|
|
ASSERT(XFS_FORCED_SHUTDOWN(mp));
|
|
xfs_alert(mp, "%s failed (error %d)!", __func__, error);
|
|
}
|
|
if (need_alloc)
|
|
xfs_finish_inode_setup(*ip);
|
|
return error;
|
|
}
|
|
|
|
|
|
STATIC void
|
|
xfs_qm_reset_dqcounts(
|
|
xfs_mount_t *mp,
|
|
xfs_buf_t *bp,
|
|
xfs_dqid_t id,
|
|
uint type)
|
|
{
|
|
struct xfs_dqblk *dqb;
|
|
int j;
|
|
xfs_failaddr_t fa;
|
|
|
|
trace_xfs_reset_dqcounts(bp, _RET_IP_);
|
|
|
|
/*
|
|
* Reset all counters and timers. They'll be
|
|
* started afresh by xfs_qm_quotacheck.
|
|
*/
|
|
#ifdef DEBUG
|
|
j = (int)XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB) /
|
|
sizeof(xfs_dqblk_t);
|
|
ASSERT(mp->m_quotainfo->qi_dqperchunk == j);
|
|
#endif
|
|
dqb = bp->b_addr;
|
|
for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) {
|
|
struct xfs_disk_dquot *ddq;
|
|
|
|
ddq = (struct xfs_disk_dquot *)&dqb[j];
|
|
|
|
/*
|
|
* Do a sanity check, and if needed, repair the dqblk. Don't
|
|
* output any warnings because it's perfectly possible to
|
|
* find uninitialised dquot blks. See comment in
|
|
* xfs_dquot_verify.
|
|
*/
|
|
fa = xfs_dqblk_verify(mp, &dqb[j], id + j, type);
|
|
if (fa)
|
|
xfs_dqblk_repair(mp, &dqb[j], id + j, type);
|
|
|
|
/*
|
|
* Reset type in case we are reusing group quota file for
|
|
* project quotas or vice versa
|
|
*/
|
|
ddq->d_flags = type;
|
|
ddq->d_bcount = 0;
|
|
ddq->d_icount = 0;
|
|
ddq->d_rtbcount = 0;
|
|
ddq->d_btimer = 0;
|
|
ddq->d_itimer = 0;
|
|
ddq->d_rtbtimer = 0;
|
|
ddq->d_bwarns = 0;
|
|
ddq->d_iwarns = 0;
|
|
ddq->d_rtbwarns = 0;
|
|
|
|
if (xfs_sb_version_hascrc(&mp->m_sb)) {
|
|
xfs_update_cksum((char *)&dqb[j],
|
|
sizeof(struct xfs_dqblk),
|
|
XFS_DQUOT_CRC_OFF);
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC int
|
|
xfs_qm_reset_dqcounts_all(
|
|
struct xfs_mount *mp,
|
|
xfs_dqid_t firstid,
|
|
xfs_fsblock_t bno,
|
|
xfs_filblks_t blkcnt,
|
|
uint flags,
|
|
struct list_head *buffer_list)
|
|
{
|
|
struct xfs_buf *bp;
|
|
int error;
|
|
int type;
|
|
|
|
ASSERT(blkcnt > 0);
|
|
type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER :
|
|
(flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP);
|
|
error = 0;
|
|
|
|
/*
|
|
* Blkcnt arg can be a very big number, and might even be
|
|
* larger than the log itself. So, we have to break it up into
|
|
* manageable-sized transactions.
|
|
* Note that we don't start a permanent transaction here; we might
|
|
* not be able to get a log reservation for the whole thing up front,
|
|
* and we don't really care to either, because we just discard
|
|
* everything if we were to crash in the middle of this loop.
|
|
*/
|
|
while (blkcnt--) {
|
|
error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
|
|
XFS_FSB_TO_DADDR(mp, bno),
|
|
mp->m_quotainfo->qi_dqchunklen, 0, &bp,
|
|
&xfs_dquot_buf_ops);
|
|
|
|
/*
|
|
* CRC and validation errors will return a EFSCORRUPTED here. If
|
|
* this occurs, re-read without CRC validation so that we can
|
|
* repair the damage via xfs_qm_reset_dqcounts(). This process
|
|
* will leave a trace in the log indicating corruption has
|
|
* been detected.
|
|
*/
|
|
if (error == -EFSCORRUPTED) {
|
|
error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
|
|
XFS_FSB_TO_DADDR(mp, bno),
|
|
mp->m_quotainfo->qi_dqchunklen, 0, &bp,
|
|
NULL);
|
|
}
|
|
|
|
if (error)
|
|
break;
|
|
|
|
/*
|
|
* A corrupt buffer might not have a verifier attached, so
|
|
* make sure we have the correct one attached before writeback
|
|
* occurs.
|
|
*/
|
|
bp->b_ops = &xfs_dquot_buf_ops;
|
|
xfs_qm_reset_dqcounts(mp, bp, firstid, type);
|
|
xfs_buf_delwri_queue(bp, buffer_list);
|
|
xfs_buf_relse(bp);
|
|
|
|
/* goto the next block. */
|
|
bno++;
|
|
firstid += mp->m_quotainfo->qi_dqperchunk;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Iterate over all allocated dquot blocks in this quota inode, zeroing all
|
|
* counters for every chunk of dquots that we find.
|
|
*/
|
|
STATIC int
|
|
xfs_qm_reset_dqcounts_buf(
|
|
struct xfs_mount *mp,
|
|
struct xfs_inode *qip,
|
|
uint flags,
|
|
struct list_head *buffer_list)
|
|
{
|
|
struct xfs_bmbt_irec *map;
|
|
int i, nmaps; /* number of map entries */
|
|
int error; /* return value */
|
|
xfs_fileoff_t lblkno;
|
|
xfs_filblks_t maxlblkcnt;
|
|
xfs_dqid_t firstid;
|
|
xfs_fsblock_t rablkno;
|
|
xfs_filblks_t rablkcnt;
|
|
|
|
error = 0;
|
|
/*
|
|
* This looks racy, but we can't keep an inode lock across a
|
|
* trans_reserve. But, this gets called during quotacheck, and that
|
|
* happens only at mount time which is single threaded.
|
|
*/
|
|
if (qip->i_d.di_nblocks == 0)
|
|
return 0;
|
|
|
|
map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP);
|
|
|
|
lblkno = 0;
|
|
maxlblkcnt = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);
|
|
do {
|
|
uint lock_mode;
|
|
|
|
nmaps = XFS_DQITER_MAP_SIZE;
|
|
/*
|
|
* We aren't changing the inode itself. Just changing
|
|
* some of its data. No new blocks are added here, and
|
|
* the inode is never added to the transaction.
|
|
*/
|
|
lock_mode = xfs_ilock_data_map_shared(qip);
|
|
error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno,
|
|
map, &nmaps, 0);
|
|
xfs_iunlock(qip, lock_mode);
|
|
if (error)
|
|
break;
|
|
|
|
ASSERT(nmaps <= XFS_DQITER_MAP_SIZE);
|
|
for (i = 0; i < nmaps; i++) {
|
|
ASSERT(map[i].br_startblock != DELAYSTARTBLOCK);
|
|
ASSERT(map[i].br_blockcount);
|
|
|
|
|
|
lblkno += map[i].br_blockcount;
|
|
|
|
if (map[i].br_startblock == HOLESTARTBLOCK)
|
|
continue;
|
|
|
|
firstid = (xfs_dqid_t) map[i].br_startoff *
|
|
mp->m_quotainfo->qi_dqperchunk;
|
|
/*
|
|
* Do a read-ahead on the next extent.
|
|
*/
|
|
if ((i+1 < nmaps) &&
|
|
(map[i+1].br_startblock != HOLESTARTBLOCK)) {
|
|
rablkcnt = map[i+1].br_blockcount;
|
|
rablkno = map[i+1].br_startblock;
|
|
while (rablkcnt--) {
|
|
xfs_buf_readahead(mp->m_ddev_targp,
|
|
XFS_FSB_TO_DADDR(mp, rablkno),
|
|
mp->m_quotainfo->qi_dqchunklen,
|
|
&xfs_dquot_buf_ops);
|
|
rablkno++;
|
|
}
|
|
}
|
|
/*
|
|
* Iterate thru all the blks in the extent and
|
|
* reset the counters of all the dquots inside them.
|
|
*/
|
|
error = xfs_qm_reset_dqcounts_all(mp, firstid,
|
|
map[i].br_startblock,
|
|
map[i].br_blockcount,
|
|
flags, buffer_list);
|
|
if (error)
|
|
goto out;
|
|
}
|
|
} while (nmaps > 0);
|
|
|
|
out:
|
|
kmem_free(map);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Called by dqusage_adjust in doing a quotacheck.
|
|
*
|
|
* Given the inode, and a dquot id this updates both the incore dqout as well
|
|
* as the buffer copy. This is so that once the quotacheck is done, we can
|
|
* just log all the buffers, as opposed to logging numerous updates to
|
|
* individual dquots.
|
|
*/
|
|
STATIC int
|
|
xfs_qm_quotacheck_dqadjust(
|
|
struct xfs_inode *ip,
|
|
uint type,
|
|
xfs_qcnt_t nblks,
|
|
xfs_qcnt_t rtblks)
|
|
{
|
|
struct xfs_mount *mp = ip->i_mount;
|
|
struct xfs_dquot *dqp;
|
|
xfs_dqid_t id;
|
|
int error;
|
|
|
|
id = xfs_qm_id_for_quotatype(ip, type);
|
|
error = xfs_qm_dqget(mp, id, type, true, &dqp);
|
|
if (error) {
|
|
/*
|
|
* Shouldn't be able to turn off quotas here.
|
|
*/
|
|
ASSERT(error != -ESRCH);
|
|
ASSERT(error != -ENOENT);
|
|
return error;
|
|
}
|
|
|
|
trace_xfs_dqadjust(dqp);
|
|
|
|
/*
|
|
* Adjust the inode count and the block count to reflect this inode's
|
|
* resource usage.
|
|
*/
|
|
be64_add_cpu(&dqp->q_core.d_icount, 1);
|
|
dqp->q_res_icount++;
|
|
if (nblks) {
|
|
be64_add_cpu(&dqp->q_core.d_bcount, nblks);
|
|
dqp->q_res_bcount += nblks;
|
|
}
|
|
if (rtblks) {
|
|
be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks);
|
|
dqp->q_res_rtbcount += rtblks;
|
|
}
|
|
|
|
/*
|
|
* Set default limits, adjust timers (since we changed usages)
|
|
*
|
|
* There are no timers for the default values set in the root dquot.
|
|
*/
|
|
if (dqp->q_core.d_id) {
|
|
xfs_qm_adjust_dqlimits(mp, dqp);
|
|
xfs_qm_adjust_dqtimers(mp, &dqp->q_core);
|
|
}
|
|
|
|
dqp->dq_flags |= XFS_DQ_DIRTY;
|
|
xfs_qm_dqput(dqp);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* callback routine supplied to bulkstat(). Given an inumber, find its
|
|
* dquots and update them to account for resources taken by that inode.
|
|
*/
|
|
/* ARGSUSED */
|
|
STATIC int
|
|
xfs_qm_dqusage_adjust(
|
|
xfs_mount_t *mp, /* mount point for filesystem */
|
|
xfs_ino_t ino, /* inode number to get data for */
|
|
void __user *buffer, /* not used */
|
|
int ubsize, /* not used */
|
|
int *ubused, /* not used */
|
|
int *res) /* result code value */
|
|
{
|
|
xfs_inode_t *ip;
|
|
xfs_qcnt_t nblks;
|
|
xfs_filblks_t rtblks = 0; /* total rt blks */
|
|
int error;
|
|
|
|
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
|
|
|
|
/*
|
|
* rootino must have its resources accounted for, not so with the quota
|
|
* inodes.
|
|
*/
|
|
if (xfs_is_quota_inode(&mp->m_sb, ino)) {
|
|
*res = BULKSTAT_RV_NOTHING;
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* We don't _need_ to take the ilock EXCL here because quotacheck runs
|
|
* at mount time and therefore nobody will be racing chown/chproj.
|
|
*/
|
|
error = xfs_iget(mp, NULL, ino, XFS_IGET_DONTCACHE, 0, &ip);
|
|
if (error) {
|
|
*res = BULKSTAT_RV_NOTHING;
|
|
return error;
|
|
}
|
|
|
|
ASSERT(ip->i_delayed_blks == 0);
|
|
|
|
if (XFS_IS_REALTIME_INODE(ip)) {
|
|
struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
|
|
|
|
if (!(ifp->if_flags & XFS_IFEXTENTS)) {
|
|
error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK);
|
|
if (error)
|
|
goto error0;
|
|
}
|
|
|
|
xfs_bmap_count_leaves(ifp, &rtblks);
|
|
}
|
|
|
|
nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks;
|
|
|
|
/*
|
|
* Add the (disk blocks and inode) resources occupied by this
|
|
* inode to its dquots. We do this adjustment in the incore dquot,
|
|
* and also copy the changes to its buffer.
|
|
* We don't care about putting these changes in a transaction
|
|
* envelope because if we crash in the middle of a 'quotacheck'
|
|
* we have to start from the beginning anyway.
|
|
* Once we're done, we'll log all the dquot bufs.
|
|
*
|
|
* The *QUOTA_ON checks below may look pretty racy, but quotachecks
|
|
* and quotaoffs don't race. (Quotachecks happen at mount time only).
|
|
*/
|
|
if (XFS_IS_UQUOTA_ON(mp)) {
|
|
error = xfs_qm_quotacheck_dqadjust(ip, XFS_DQ_USER, nblks,
|
|
rtblks);
|
|
if (error)
|
|
goto error0;
|
|
}
|
|
|
|
if (XFS_IS_GQUOTA_ON(mp)) {
|
|
error = xfs_qm_quotacheck_dqadjust(ip, XFS_DQ_GROUP, nblks,
|
|
rtblks);
|
|
if (error)
|
|
goto error0;
|
|
}
|
|
|
|
if (XFS_IS_PQUOTA_ON(mp)) {
|
|
error = xfs_qm_quotacheck_dqadjust(ip, XFS_DQ_PROJ, nblks,
|
|
rtblks);
|
|
if (error)
|
|
goto error0;
|
|
}
|
|
|
|
xfs_irele(ip);
|
|
*res = BULKSTAT_RV_DIDONE;
|
|
return 0;
|
|
|
|
error0:
|
|
xfs_irele(ip);
|
|
*res = BULKSTAT_RV_GIVEUP;
|
|
return error;
|
|
}
|
|
|
|
STATIC int
|
|
xfs_qm_flush_one(
|
|
struct xfs_dquot *dqp,
|
|
void *data)
|
|
{
|
|
struct xfs_mount *mp = dqp->q_mount;
|
|
struct list_head *buffer_list = data;
|
|
struct xfs_buf *bp = NULL;
|
|
int error = 0;
|
|
|
|
xfs_dqlock(dqp);
|
|
if (dqp->dq_flags & XFS_DQ_FREEING)
|
|
goto out_unlock;
|
|
if (!XFS_DQ_IS_DIRTY(dqp))
|
|
goto out_unlock;
|
|
|
|
/*
|
|
* The only way the dquot is already flush locked by the time quotacheck
|
|
* gets here is if reclaim flushed it before the dqadjust walk dirtied
|
|
* it for the final time. Quotacheck collects all dquot bufs in the
|
|
* local delwri queue before dquots are dirtied, so reclaim can't have
|
|
* possibly queued it for I/O. The only way out is to push the buffer to
|
|
* cycle the flush lock.
|
|
*/
|
|
if (!xfs_dqflock_nowait(dqp)) {
|
|
/* buf is pinned in-core by delwri list */
|
|
bp = xfs_buf_incore(mp->m_ddev_targp, dqp->q_blkno,
|
|
mp->m_quotainfo->qi_dqchunklen, 0);
|
|
if (!bp) {
|
|
error = -EINVAL;
|
|
goto out_unlock;
|
|
}
|
|
xfs_buf_unlock(bp);
|
|
|
|
xfs_buf_delwri_pushbuf(bp, buffer_list);
|
|
xfs_buf_rele(bp);
|
|
|
|
error = -EAGAIN;
|
|
goto out_unlock;
|
|
}
|
|
|
|
error = xfs_qm_dqflush(dqp, &bp);
|
|
if (error)
|
|
goto out_unlock;
|
|
|
|
xfs_buf_delwri_queue(bp, buffer_list);
|
|
xfs_buf_relse(bp);
|
|
out_unlock:
|
|
xfs_dqunlock(dqp);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Walk thru all the filesystem inodes and construct a consistent view
|
|
* of the disk quota world. If the quotacheck fails, disable quotas.
|
|
*/
|
|
STATIC int
|
|
xfs_qm_quotacheck(
|
|
xfs_mount_t *mp)
|
|
{
|
|
int done, count, error, error2;
|
|
xfs_ino_t lastino;
|
|
size_t structsz;
|
|
uint flags;
|
|
LIST_HEAD (buffer_list);
|
|
struct xfs_inode *uip = mp->m_quotainfo->qi_uquotaip;
|
|
struct xfs_inode *gip = mp->m_quotainfo->qi_gquotaip;
|
|
struct xfs_inode *pip = mp->m_quotainfo->qi_pquotaip;
|
|
|
|
count = INT_MAX;
|
|
structsz = 1;
|
|
lastino = 0;
|
|
flags = 0;
|
|
|
|
ASSERT(uip || gip || pip);
|
|
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
|
|
|
|
xfs_notice(mp, "Quotacheck needed: Please wait.");
|
|
|
|
/*
|
|
* First we go thru all the dquots on disk, USR and GRP/PRJ, and reset
|
|
* their counters to zero. We need a clean slate.
|
|
* We don't log our changes till later.
|
|
*/
|
|
if (uip) {
|
|
error = xfs_qm_reset_dqcounts_buf(mp, uip, XFS_QMOPT_UQUOTA,
|
|
&buffer_list);
|
|
if (error)
|
|
goto error_return;
|
|
flags |= XFS_UQUOTA_CHKD;
|
|
}
|
|
|
|
if (gip) {
|
|
error = xfs_qm_reset_dqcounts_buf(mp, gip, XFS_QMOPT_GQUOTA,
|
|
&buffer_list);
|
|
if (error)
|
|
goto error_return;
|
|
flags |= XFS_GQUOTA_CHKD;
|
|
}
|
|
|
|
if (pip) {
|
|
error = xfs_qm_reset_dqcounts_buf(mp, pip, XFS_QMOPT_PQUOTA,
|
|
&buffer_list);
|
|
if (error)
|
|
goto error_return;
|
|
flags |= XFS_PQUOTA_CHKD;
|
|
}
|
|
|
|
do {
|
|
/*
|
|
* Iterate thru all the inodes in the file system,
|
|
* adjusting the corresponding dquot counters in core.
|
|
*/
|
|
error = xfs_bulkstat(mp, &lastino, &count,
|
|
xfs_qm_dqusage_adjust,
|
|
structsz, NULL, &done);
|
|
if (error)
|
|
break;
|
|
|
|
} while (!done);
|
|
|
|
/*
|
|
* We've made all the changes that we need to make incore. Flush them
|
|
* down to disk buffers if everything was updated successfully.
|
|
*/
|
|
if (XFS_IS_UQUOTA_ON(mp)) {
|
|
error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one,
|
|
&buffer_list);
|
|
}
|
|
if (XFS_IS_GQUOTA_ON(mp)) {
|
|
error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one,
|
|
&buffer_list);
|
|
if (!error)
|
|
error = error2;
|
|
}
|
|
if (XFS_IS_PQUOTA_ON(mp)) {
|
|
error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one,
|
|
&buffer_list);
|
|
if (!error)
|
|
error = error2;
|
|
}
|
|
|
|
error2 = xfs_buf_delwri_submit(&buffer_list);
|
|
if (!error)
|
|
error = error2;
|
|
|
|
/*
|
|
* We can get this error if we couldn't do a dquot allocation inside
|
|
* xfs_qm_dqusage_adjust (via bulkstat). We don't care about the
|
|
* dirty dquots that might be cached, we just want to get rid of them
|
|
* and turn quotaoff. The dquots won't be attached to any of the inodes
|
|
* at this point (because we intentionally didn't in dqget_noattach).
|
|
*/
|
|
if (error) {
|
|
xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL);
|
|
goto error_return;
|
|
}
|
|
|
|
/*
|
|
* If one type of quotas is off, then it will lose its
|
|
* quotachecked status, since we won't be doing accounting for
|
|
* that type anymore.
|
|
*/
|
|
mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD;
|
|
mp->m_qflags |= flags;
|
|
|
|
error_return:
|
|
xfs_buf_delwri_cancel(&buffer_list);
|
|
|
|
if (error) {
|
|
xfs_warn(mp,
|
|
"Quotacheck: Unsuccessful (Error %d): Disabling quotas.",
|
|
error);
|
|
/*
|
|
* We must turn off quotas.
|
|
*/
|
|
ASSERT(mp->m_quotainfo != NULL);
|
|
xfs_qm_destroy_quotainfo(mp);
|
|
if (xfs_mount_reset_sbqflags(mp)) {
|
|
xfs_warn(mp,
|
|
"Quotacheck: Failed to reset quota flags.");
|
|
}
|
|
} else
|
|
xfs_notice(mp, "Quotacheck: Done.");
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* This is called from xfs_mountfs to start quotas and initialize all
|
|
* necessary data structures like quotainfo. This is also responsible for
|
|
* running a quotacheck as necessary. We are guaranteed that the superblock
|
|
* is consistently read in at this point.
|
|
*
|
|
* If we fail here, the mount will continue with quota turned off. We don't
|
|
* need to inidicate success or failure at all.
|
|
*/
|
|
void
|
|
xfs_qm_mount_quotas(
|
|
struct xfs_mount *mp)
|
|
{
|
|
int error = 0;
|
|
uint sbf;
|
|
|
|
/*
|
|
* If quotas on realtime volumes is not supported, we disable
|
|
* quotas immediately.
|
|
*/
|
|
if (mp->m_sb.sb_rextents) {
|
|
xfs_notice(mp, "Cannot turn on quotas for realtime filesystem");
|
|
mp->m_qflags = 0;
|
|
goto write_changes;
|
|
}
|
|
|
|
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
|
|
|
|
/*
|
|
* Allocate the quotainfo structure inside the mount struct, and
|
|
* create quotainode(s), and change/rev superblock if necessary.
|
|
*/
|
|
error = xfs_qm_init_quotainfo(mp);
|
|
if (error) {
|
|
/*
|
|
* We must turn off quotas.
|
|
*/
|
|
ASSERT(mp->m_quotainfo == NULL);
|
|
mp->m_qflags = 0;
|
|
goto write_changes;
|
|
}
|
|
/*
|
|
* If any of the quotas are not consistent, do a quotacheck.
|
|
*/
|
|
if (XFS_QM_NEED_QUOTACHECK(mp)) {
|
|
error = xfs_qm_quotacheck(mp);
|
|
if (error) {
|
|
/* Quotacheck failed and disabled quotas. */
|
|
return;
|
|
}
|
|
}
|
|
/*
|
|
* If one type of quotas is off, then it will lose its
|
|
* quotachecked status, since we won't be doing accounting for
|
|
* that type anymore.
|
|
*/
|
|
if (!XFS_IS_UQUOTA_ON(mp))
|
|
mp->m_qflags &= ~XFS_UQUOTA_CHKD;
|
|
if (!XFS_IS_GQUOTA_ON(mp))
|
|
mp->m_qflags &= ~XFS_GQUOTA_CHKD;
|
|
if (!XFS_IS_PQUOTA_ON(mp))
|
|
mp->m_qflags &= ~XFS_PQUOTA_CHKD;
|
|
|
|
write_changes:
|
|
/*
|
|
* We actually don't have to acquire the m_sb_lock at all.
|
|
* This can only be called from mount, and that's single threaded. XXX
|
|
*/
|
|
spin_lock(&mp->m_sb_lock);
|
|
sbf = mp->m_sb.sb_qflags;
|
|
mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL;
|
|
spin_unlock(&mp->m_sb_lock);
|
|
|
|
if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) {
|
|
if (xfs_sync_sb(mp, false)) {
|
|
/*
|
|
* We could only have been turning quotas off.
|
|
* We aren't in very good shape actually because
|
|
* the incore structures are convinced that quotas are
|
|
* off, but the on disk superblock doesn't know that !
|
|
*/
|
|
ASSERT(!(XFS_IS_QUOTA_RUNNING(mp)));
|
|
xfs_alert(mp, "%s: Superblock update failed!",
|
|
__func__);
|
|
}
|
|
}
|
|
|
|
if (error) {
|
|
xfs_warn(mp, "Failed to initialize disk quotas.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This is called after the superblock has been read in and we're ready to
|
|
* iget the quota inodes.
|
|
*/
|
|
STATIC int
|
|
xfs_qm_init_quotainos(
|
|
xfs_mount_t *mp)
|
|
{
|
|
struct xfs_inode *uip = NULL;
|
|
struct xfs_inode *gip = NULL;
|
|
struct xfs_inode *pip = NULL;
|
|
int error;
|
|
uint flags = 0;
|
|
|
|
ASSERT(mp->m_quotainfo);
|
|
|
|
/*
|
|
* Get the uquota and gquota inodes
|
|
*/
|
|
if (xfs_sb_version_hasquota(&mp->m_sb)) {
|
|
if (XFS_IS_UQUOTA_ON(mp) &&
|
|
mp->m_sb.sb_uquotino != NULLFSINO) {
|
|
ASSERT(mp->m_sb.sb_uquotino > 0);
|
|
error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino,
|
|
0, 0, &uip);
|
|
if (error)
|
|
return error;
|
|
}
|
|
if (XFS_IS_GQUOTA_ON(mp) &&
|
|
mp->m_sb.sb_gquotino != NULLFSINO) {
|
|
ASSERT(mp->m_sb.sb_gquotino > 0);
|
|
error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
|
|
0, 0, &gip);
|
|
if (error)
|
|
goto error_rele;
|
|
}
|
|
if (XFS_IS_PQUOTA_ON(mp) &&
|
|
mp->m_sb.sb_pquotino != NULLFSINO) {
|
|
ASSERT(mp->m_sb.sb_pquotino > 0);
|
|
error = xfs_iget(mp, NULL, mp->m_sb.sb_pquotino,
|
|
0, 0, &pip);
|
|
if (error)
|
|
goto error_rele;
|
|
}
|
|
} else {
|
|
flags |= XFS_QMOPT_SBVERSION;
|
|
}
|
|
|
|
/*
|
|
* Create the three inodes, if they don't exist already. The changes
|
|
* made above will get added to a transaction and logged in one of
|
|
* the qino_alloc calls below. If the device is readonly,
|
|
* temporarily switch to read-write to do this.
|
|
*/
|
|
if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) {
|
|
error = xfs_qm_qino_alloc(mp, &uip,
|
|
flags | XFS_QMOPT_UQUOTA);
|
|
if (error)
|
|
goto error_rele;
|
|
|
|
flags &= ~XFS_QMOPT_SBVERSION;
|
|
}
|
|
if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) {
|
|
error = xfs_qm_qino_alloc(mp, &gip,
|
|
flags | XFS_QMOPT_GQUOTA);
|
|
if (error)
|
|
goto error_rele;
|
|
|
|
flags &= ~XFS_QMOPT_SBVERSION;
|
|
}
|
|
if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) {
|
|
error = xfs_qm_qino_alloc(mp, &pip,
|
|
flags | XFS_QMOPT_PQUOTA);
|
|
if (error)
|
|
goto error_rele;
|
|
}
|
|
|
|
mp->m_quotainfo->qi_uquotaip = uip;
|
|
mp->m_quotainfo->qi_gquotaip = gip;
|
|
mp->m_quotainfo->qi_pquotaip = pip;
|
|
|
|
return 0;
|
|
|
|
error_rele:
|
|
if (uip)
|
|
xfs_irele(uip);
|
|
if (gip)
|
|
xfs_irele(gip);
|
|
if (pip)
|
|
xfs_irele(pip);
|
|
return error;
|
|
}
|
|
|
|
STATIC void
|
|
xfs_qm_destroy_quotainos(
|
|
xfs_quotainfo_t *qi)
|
|
{
|
|
if (qi->qi_uquotaip) {
|
|
xfs_irele(qi->qi_uquotaip);
|
|
qi->qi_uquotaip = NULL; /* paranoia */
|
|
}
|
|
if (qi->qi_gquotaip) {
|
|
xfs_irele(qi->qi_gquotaip);
|
|
qi->qi_gquotaip = NULL;
|
|
}
|
|
if (qi->qi_pquotaip) {
|
|
xfs_irele(qi->qi_pquotaip);
|
|
qi->qi_pquotaip = NULL;
|
|
}
|
|
}
|
|
|
|
STATIC void
|
|
xfs_qm_dqfree_one(
|
|
struct xfs_dquot *dqp)
|
|
{
|
|
struct xfs_mount *mp = dqp->q_mount;
|
|
struct xfs_quotainfo *qi = mp->m_quotainfo;
|
|
|
|
mutex_lock(&qi->qi_tree_lock);
|
|
radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags),
|
|
be32_to_cpu(dqp->q_core.d_id));
|
|
|
|
qi->qi_dquots--;
|
|
mutex_unlock(&qi->qi_tree_lock);
|
|
|
|
xfs_qm_dqdestroy(dqp);
|
|
}
|
|
|
|
/* --------------- utility functions for vnodeops ---------------- */
|
|
|
|
|
|
/*
|
|
* Given an inode, a uid, gid and prid make sure that we have
|
|
* allocated relevant dquot(s) on disk, and that we won't exceed inode
|
|
* quotas by creating this file.
|
|
* This also attaches dquot(s) to the given inode after locking it,
|
|
* and returns the dquots corresponding to the uid and/or gid.
|
|
*
|
|
* in : inode (unlocked)
|
|
* out : udquot, gdquot with references taken and unlocked
|
|
*/
|
|
int
|
|
xfs_qm_vop_dqalloc(
|
|
struct xfs_inode *ip,
|
|
xfs_dqid_t uid,
|
|
xfs_dqid_t gid,
|
|
prid_t prid,
|
|
uint flags,
|
|
struct xfs_dquot **O_udqpp,
|
|
struct xfs_dquot **O_gdqpp,
|
|
struct xfs_dquot **O_pdqpp)
|
|
{
|
|
struct xfs_mount *mp = ip->i_mount;
|
|
struct xfs_dquot *uq = NULL;
|
|
struct xfs_dquot *gq = NULL;
|
|
struct xfs_dquot *pq = NULL;
|
|
int error;
|
|
uint lockflags;
|
|
|
|
if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
|
|
return 0;
|
|
|
|
lockflags = XFS_ILOCK_EXCL;
|
|
xfs_ilock(ip, lockflags);
|
|
|
|
if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip))
|
|
gid = ip->i_d.di_gid;
|
|
|
|
/*
|
|
* Attach the dquot(s) to this inode, doing a dquot allocation
|
|
* if necessary. The dquot(s) will not be locked.
|
|
*/
|
|
if (XFS_NOT_DQATTACHED(mp, ip)) {
|
|
error = xfs_qm_dqattach_locked(ip, true);
|
|
if (error) {
|
|
xfs_iunlock(ip, lockflags);
|
|
return error;
|
|
}
|
|
}
|
|
|
|
if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) {
|
|
if (ip->i_d.di_uid != uid) {
|
|
/*
|
|
* What we need is the dquot that has this uid, and
|
|
* if we send the inode to dqget, the uid of the inode
|
|
* takes priority over what's sent in the uid argument.
|
|
* We must unlock inode here before calling dqget if
|
|
* we're not sending the inode, because otherwise
|
|
* we'll deadlock by doing trans_reserve while
|
|
* holding ilock.
|
|
*/
|
|
xfs_iunlock(ip, lockflags);
|
|
error = xfs_qm_dqget(mp, uid, XFS_DQ_USER, true, &uq);
|
|
if (error) {
|
|
ASSERT(error != -ENOENT);
|
|
return error;
|
|
}
|
|
/*
|
|
* Get the ilock in the right order.
|
|
*/
|
|
xfs_dqunlock(uq);
|
|
lockflags = XFS_ILOCK_SHARED;
|
|
xfs_ilock(ip, lockflags);
|
|
} else {
|
|
/*
|
|
* Take an extra reference, because we'll return
|
|
* this to caller
|
|
*/
|
|
ASSERT(ip->i_udquot);
|
|
uq = xfs_qm_dqhold(ip->i_udquot);
|
|
}
|
|
}
|
|
if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) {
|
|
if (ip->i_d.di_gid != gid) {
|
|
xfs_iunlock(ip, lockflags);
|
|
error = xfs_qm_dqget(mp, gid, XFS_DQ_GROUP, true, &gq);
|
|
if (error) {
|
|
ASSERT(error != -ENOENT);
|
|
goto error_rele;
|
|
}
|
|
xfs_dqunlock(gq);
|
|
lockflags = XFS_ILOCK_SHARED;
|
|
xfs_ilock(ip, lockflags);
|
|
} else {
|
|
ASSERT(ip->i_gdquot);
|
|
gq = xfs_qm_dqhold(ip->i_gdquot);
|
|
}
|
|
}
|
|
if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) {
|
|
if (xfs_get_projid(ip) != prid) {
|
|
xfs_iunlock(ip, lockflags);
|
|
error = xfs_qm_dqget(mp, (xfs_dqid_t)prid, XFS_DQ_PROJ,
|
|
true, &pq);
|
|
if (error) {
|
|
ASSERT(error != -ENOENT);
|
|
goto error_rele;
|
|
}
|
|
xfs_dqunlock(pq);
|
|
lockflags = XFS_ILOCK_SHARED;
|
|
xfs_ilock(ip, lockflags);
|
|
} else {
|
|
ASSERT(ip->i_pdquot);
|
|
pq = xfs_qm_dqhold(ip->i_pdquot);
|
|
}
|
|
}
|
|
if (uq)
|
|
trace_xfs_dquot_dqalloc(ip);
|
|
|
|
xfs_iunlock(ip, lockflags);
|
|
if (O_udqpp)
|
|
*O_udqpp = uq;
|
|
else
|
|
xfs_qm_dqrele(uq);
|
|
if (O_gdqpp)
|
|
*O_gdqpp = gq;
|
|
else
|
|
xfs_qm_dqrele(gq);
|
|
if (O_pdqpp)
|
|
*O_pdqpp = pq;
|
|
else
|
|
xfs_qm_dqrele(pq);
|
|
return 0;
|
|
|
|
error_rele:
|
|
xfs_qm_dqrele(gq);
|
|
xfs_qm_dqrele(uq);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Actually transfer ownership, and do dquot modifications.
|
|
* These were already reserved.
|
|
*/
|
|
xfs_dquot_t *
|
|
xfs_qm_vop_chown(
|
|
xfs_trans_t *tp,
|
|
xfs_inode_t *ip,
|
|
xfs_dquot_t **IO_olddq,
|
|
xfs_dquot_t *newdq)
|
|
{
|
|
xfs_dquot_t *prevdq;
|
|
uint bfield = XFS_IS_REALTIME_INODE(ip) ?
|
|
XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT;
|
|
|
|
|
|
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
|
|
ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
|
|
|
|
/* old dquot */
|
|
prevdq = *IO_olddq;
|
|
ASSERT(prevdq);
|
|
ASSERT(prevdq != newdq);
|
|
|
|
xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks));
|
|
xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1);
|
|
|
|
/* the sparkling new dquot */
|
|
xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks);
|
|
xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1);
|
|
|
|
/*
|
|
* Take an extra reference, because the inode is going to keep
|
|
* this dquot pointer even after the trans_commit.
|
|
*/
|
|
*IO_olddq = xfs_qm_dqhold(newdq);
|
|
|
|
return prevdq;
|
|
}
|
|
|
|
/*
|
|
* Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID).
|
|
*/
|
|
int
|
|
xfs_qm_vop_chown_reserve(
|
|
struct xfs_trans *tp,
|
|
struct xfs_inode *ip,
|
|
struct xfs_dquot *udqp,
|
|
struct xfs_dquot *gdqp,
|
|
struct xfs_dquot *pdqp,
|
|
uint flags)
|
|
{
|
|
struct xfs_mount *mp = ip->i_mount;
|
|
uint64_t delblks;
|
|
unsigned int blkflags, prjflags = 0;
|
|
struct xfs_dquot *udq_unres = NULL;
|
|
struct xfs_dquot *gdq_unres = NULL;
|
|
struct xfs_dquot *pdq_unres = NULL;
|
|
struct xfs_dquot *udq_delblks = NULL;
|
|
struct xfs_dquot *gdq_delblks = NULL;
|
|
struct xfs_dquot *pdq_delblks = NULL;
|
|
int error;
|
|
|
|
|
|
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
|
|
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
|
|
|
|
delblks = ip->i_delayed_blks;
|
|
blkflags = XFS_IS_REALTIME_INODE(ip) ?
|
|
XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS;
|
|
|
|
if (XFS_IS_UQUOTA_ON(mp) && udqp &&
|
|
ip->i_d.di_uid != be32_to_cpu(udqp->q_core.d_id)) {
|
|
udq_delblks = udqp;
|
|
/*
|
|
* If there are delayed allocation blocks, then we have to
|
|
* unreserve those from the old dquot, and add them to the
|
|
* new dquot.
|
|
*/
|
|
if (delblks) {
|
|
ASSERT(ip->i_udquot);
|
|
udq_unres = ip->i_udquot;
|
|
}
|
|
}
|
|
if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp &&
|
|
ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id)) {
|
|
gdq_delblks = gdqp;
|
|
if (delblks) {
|
|
ASSERT(ip->i_gdquot);
|
|
gdq_unres = ip->i_gdquot;
|
|
}
|
|
}
|
|
|
|
if (XFS_IS_PQUOTA_ON(ip->i_mount) && pdqp &&
|
|
xfs_get_projid(ip) != be32_to_cpu(pdqp->q_core.d_id)) {
|
|
prjflags = XFS_QMOPT_ENOSPC;
|
|
pdq_delblks = pdqp;
|
|
if (delblks) {
|
|
ASSERT(ip->i_pdquot);
|
|
pdq_unres = ip->i_pdquot;
|
|
}
|
|
}
|
|
|
|
error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount,
|
|
udq_delblks, gdq_delblks, pdq_delblks,
|
|
ip->i_d.di_nblocks, 1,
|
|
flags | blkflags | prjflags);
|
|
if (error)
|
|
return error;
|
|
|
|
/*
|
|
* Do the delayed blks reservations/unreservations now. Since, these
|
|
* are done without the help of a transaction, if a reservation fails
|
|
* its previous reservations won't be automatically undone by trans
|
|
* code. So, we have to do it manually here.
|
|
*/
|
|
if (delblks) {
|
|
/*
|
|
* Do the reservations first. Unreservation can't fail.
|
|
*/
|
|
ASSERT(udq_delblks || gdq_delblks || pdq_delblks);
|
|
ASSERT(udq_unres || gdq_unres || pdq_unres);
|
|
error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount,
|
|
udq_delblks, gdq_delblks, pdq_delblks,
|
|
(xfs_qcnt_t)delblks, 0,
|
|
flags | blkflags | prjflags);
|
|
if (error)
|
|
return error;
|
|
xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount,
|
|
udq_unres, gdq_unres, pdq_unres,
|
|
-((xfs_qcnt_t)delblks), 0, blkflags);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
xfs_qm_vop_rename_dqattach(
|
|
struct xfs_inode **i_tab)
|
|
{
|
|
struct xfs_mount *mp = i_tab[0]->i_mount;
|
|
int i;
|
|
|
|
if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
|
|
return 0;
|
|
|
|
for (i = 0; (i < 4 && i_tab[i]); i++) {
|
|
struct xfs_inode *ip = i_tab[i];
|
|
int error;
|
|
|
|
/*
|
|
* Watch out for duplicate entries in the table.
|
|
*/
|
|
if (i == 0 || ip != i_tab[i-1]) {
|
|
if (XFS_NOT_DQATTACHED(mp, ip)) {
|
|
error = xfs_qm_dqattach(ip);
|
|
if (error)
|
|
return error;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
xfs_qm_vop_create_dqattach(
|
|
struct xfs_trans *tp,
|
|
struct xfs_inode *ip,
|
|
struct xfs_dquot *udqp,
|
|
struct xfs_dquot *gdqp,
|
|
struct xfs_dquot *pdqp)
|
|
{
|
|
struct xfs_mount *mp = tp->t_mountp;
|
|
|
|
if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
|
|
return;
|
|
|
|
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
|
|
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
|
|
|
|
if (udqp && XFS_IS_UQUOTA_ON(mp)) {
|
|
ASSERT(ip->i_udquot == NULL);
|
|
ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id));
|
|
|
|
ip->i_udquot = xfs_qm_dqhold(udqp);
|
|
xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1);
|
|
}
|
|
if (gdqp && XFS_IS_GQUOTA_ON(mp)) {
|
|
ASSERT(ip->i_gdquot == NULL);
|
|
ASSERT(ip->i_d.di_gid == be32_to_cpu(gdqp->q_core.d_id));
|
|
ip->i_gdquot = xfs_qm_dqhold(gdqp);
|
|
xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1);
|
|
}
|
|
if (pdqp && XFS_IS_PQUOTA_ON(mp)) {
|
|
ASSERT(ip->i_pdquot == NULL);
|
|
ASSERT(xfs_get_projid(ip) == be32_to_cpu(pdqp->q_core.d_id));
|
|
|
|
ip->i_pdquot = xfs_qm_dqhold(pdqp);
|
|
xfs_trans_mod_dquot(tp, pdqp, XFS_TRANS_DQ_ICOUNT, 1);
|
|
}
|
|
}
|
|
|