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xfs: calculate XFS_TRANS_QM_SBCHANGE space log reservation at mount time 

The transaction log space for clearing/reseting the quota flags
is calculated out at runtime, this patch can figure it out at
mount time.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
CC: Dave Chinner <david@fromorbit.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
wifi-calibration
Jeff Liu 2013-01-28 21:26:16 +08:00 committed by Ben Myers
parent 5b292ae3a9
commit b0c10b983a
4 changed files with 16 additions and 3 deletions
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4
fs/xfs/xfs_mount.c
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@ -1109,8 +1109,8 @@ xfs_mount_reset_sbqflags(
return 0;
tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
XFS_DEFAULT_LOG_COUNT);
error = xfs_trans_reserve(tp, 0, XFS_QM_SBCHANGE_LOG_RES(mp),
0, 0, XFS_DEFAULT_LOG_COUNT);
if (error) {
xfs_trans_cancel(tp, 0);
xfs_alert(mp, "%s: Superblock update failed!", __func__);

1
fs/xfs/xfs_mount.h
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@ -40,6 +40,7 @@ typedef struct xfs_trans_reservations {
uint tr_growrtalloc; /* grow realtime allocations */
uint tr_growrtzero; /* grow realtime zeroing */
uint tr_growrtfree; /* grow realtime freeing */
uint tr_qm_sbchange; /* change quota flags */
} xfs_trans_reservations_t;
#ifndef __KERNEL__

12
fs/xfs/xfs_trans.c
View File

@ -545,6 +545,17 @@ xfs_calc_clear_agi_bucket_reservation(
return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
}
/*
* Clearing the quotaflags in the superblock.
* the super block for changing quota flags: sector size
*/
STATIC uint
xfs_calc_qm_sbchange_reservation(
struct xfs_mount *mp)
{
return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
}
/*
* Initialize the precomputed transaction reservation values
* in the mount structure.
@ -576,6 +587,7 @@ xfs_trans_init(
resp->tr_growrtalloc = xfs_calc_growrtalloc_reservation(mp);
resp->tr_growrtzero = xfs_calc_growrtzero_reservation(mp);
resp->tr_growrtfree = xfs_calc_growrtfree_reservation(mp);
resp->tr_qm_sbchange = xfs_calc_qm_sbchange_reservation(mp);
}
/*

2
fs/xfs/xfs_trans.h
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@ -262,7 +262,7 @@ struct xfs_log_item_desc {
(128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))))
#define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm)
#define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi)
#define XFS_QM_SBCHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_qm_sbchange)
/*
* Various log count values.