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remarkable-linux/fs/xfs
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Christoph Hellwig bac8dca9f9 [XFS] fix NULL pointer dereference in xfs_log_force_umount 
xfs_log_force_umount may be called very early during log recovery where

If we fail a buffer read in xlog_recover_do_inode_trans we abort the mount.
But at that point log recovery has started delayed writeback of inode
buffers.   As part of the aborted mount we try to flush out all delwri
buffers, but at that point we have already freed the superblock, and set
mp->m_sb_bp to NULL, and xfs_log_force_umount which gets called after
the inode buffer writeback trips over it.

Make xfs_log_force_umount a little more careful when accessing mp->m_sb_bp
to avoid this.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
2008-12-01 11:06:44 +11:00
..
linux-2.6 [XFS] Avoid using inodes that haven't been completely initialised 2008-11-10 17:13:23 +11:00
quota [XFS] Avoid using inodes that haven't been completely initialised 2008-11-10 17:13:23 +11:00
support [XFS] Show buffer address with debug hexdump on corruption 2008-10-30 17:05:58 +11:00
Kconfig
Makefile [XFS] move sync code to its own file 2008-10-30 17:06:08 +11:00
xfs.h [XFS] make btree tracing generic 2008-10-30 16:55:13 +11:00
xfs_acl.c CRED: Wrap task credential accesses in the XFS filesystem 2008-10-31 15:50:04 +11:00
xfs_acl.h
xfs_ag.h [XFS] mark inodes for reclaim via a tag in the inode radix tree 2008-10-30 17:37:26 +11:00
xfs_alloc.c [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_alloc.h [XFS] Sync up kernel and user-space headers 2008-10-30 17:05:38 +11:00
xfs_alloc_btree.c [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_alloc_btree.h [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_arch.h [XFS] Sync up kernel and user-space headers 2008-10-30 17:05:38 +11:00
xfs_attr.c
xfs_attr.h
xfs_attr_leaf.c
xfs_attr_leaf.h
xfs_attr_sf.h
xfs_bit.c
xfs_bit.h [XFS] Sync up kernel and user-space headers 2008-10-30 17:05:38 +11:00
xfs_bmap.c [XFS] Fix double free of log tickets 2008-11-17 17:37:10 +11:00
xfs_bmap.h [XFS] Sync up kernel and user-space headers 2008-10-30 17:05:38 +11:00
xfs_bmap_btree.c [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_bmap_btree.h [XFS] Move XFS_BMAP_SANITY_CHECK out of line. 2008-10-30 17:14:43 +11:00
xfs_btree.c [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_btree.h [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_btree_trace.c [XFS] make btree tracing generic 2008-10-30 16:58:50 +11:00
xfs_btree_trace.h [XFS] make btree tracing generic 2008-10-30 16:58:50 +11:00
xfs_buf_item.c [XFS] Finish removing the mount pointer from the AIL API 2008-10-30 17:39:58 +11:00
xfs_buf_item.h
xfs_da_btree.c [XFS] Account for allocated blocks when expanding directories 2008-10-30 17:38:12 +11:00
xfs_da_btree.h [XFS] Sync up kernel and user-space headers 2008-10-30 17:05:38 +11:00
xfs_dfrag.c [XFS] Prevent lockdep false positives when locking two inodes. 2008-09-17 16:51:21 +10:00
xfs_dfrag.h
xfs_dinode.h [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_dir2.c [XFS] Account for allocated blocks when expanding directories 2008-10-30 17:38:12 +11:00
xfs_dir2.h
xfs_dir2_block.c
xfs_dir2_block.h
xfs_dir2_data.c
xfs_dir2_data.h
xfs_dir2_leaf.c
xfs_dir2_leaf.h
xfs_dir2_node.c
xfs_dir2_node.h
xfs_dir2_sf.c
xfs_dir2_sf.h
xfs_dir2_trace.c
xfs_dir2_trace.h
xfs_dmapi.h
xfs_dmops.c [XFS] kill struct xfs_mount_args 2008-10-30 17:53:24 +11:00
xfs_error.c
xfs_error.h
xfs_extfree_item.c [XFS] Finish removing the mount pointer from the AIL API 2008-10-30 17:39:58 +11:00
xfs_extfree_item.h
xfs_filestream.c
xfs_filestream.h
xfs_fs.h
xfs_fsops.c [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_fsops.h
xfs_ialloc.c [XFS] implement generic xfs_btree_get_rec 2008-10-30 16:58:11 +11:00
xfs_ialloc.h [XFS] Sync up kernel and user-space headers 2008-10-30 17:05:38 +11:00
xfs_ialloc_btree.c [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_ialloc_btree.h [XFS] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
xfs_iget.c [XFS] Fix race when looking up reclaimable inodes 2008-10-30 18:32:43 +11:00
xfs_imap.h [XFS] Sync up kernel and user-space headers 2008-10-30 17:05:38 +11:00
xfs_inode.c [XFS] Fix double free of log tickets 2008-11-17 17:37:10 +11:00
xfs_inode.h [XFS] free partially initialized inodes using destroy_inode 2008-10-30 18:26:04 +11:00
xfs_inode_item.c [XFS] Finish removing the mount pointer from the AIL API 2008-10-30 17:39:58 +11:00
xfs_inode_item.h [XFS] Sync up kernel and user-space headers 2008-10-30 17:05:38 +11:00
xfs_inum.h
xfs_iomap.c
xfs_iomap.h
xfs_itable.c [XFS] stop using xfs_itobp in xfs_bulkstat 2008-10-30 18:04:13 +11:00
xfs_itable.h
xfs_log.c [XFS] fix NULL pointer dereference in xfs_log_force_umount 2008-12-01 11:06:44 +11:00
xfs_log.h [XFS] Fix double free of log tickets 2008-11-17 17:37:10 +11:00
xfs_log_priv.h [XFS] Fix double free of log tickets 2008-11-17 17:37:10 +11:00
xfs_log_recover.c [XFS] XFS: Check for valid transaction headers in recovery 2008-10-30 17:40:09 +11:00
xfs_log_recover.h
xfs_mount.c [XFS] kill deleted inodes list 2008-10-30 17:37:49 +11:00
xfs_mount.h [XFS] kill struct xfs_mount_args 2008-10-30 17:53:24 +11:00
xfs_mru_cache.c
xfs_mru_cache.h
xfs_qmops.c [XFS] kill struct xfs_mount_args 2008-10-30 17:53:24 +11:00
xfs_quota.h
xfs_refcache.h
xfs_rename.c
xfs_rtalloc.c
xfs_rtalloc.h
xfs_rw.c
xfs_rw.h
xfs_sb.h
xfs_trans.c [XFS] Fix double free of log tickets 2008-11-17 17:37:10 +11:00
xfs_trans.h [XFS] Finish removing the mount pointer from the AIL API 2008-10-30 17:39:58 +11:00
xfs_trans_ail.c [XFS] correctly select first log item to push 2008-10-30 18:26:51 +11:00
xfs_trans_buf.c [XFS] Finish removing the mount pointer from the AIL API 2008-10-30 17:39:58 +11:00
xfs_trans_extfree.c
xfs_trans_inode.c
xfs_trans_item.c [XFS] Add ail pointer into log items 2008-10-30 17:39:46 +11:00
xfs_trans_priv.h [XFS] Finish removing the mount pointer from the AIL API 2008-10-30 17:39:58 +11:00
xfs_trans_space.h
xfs_types.h
xfs_utils.c [XFS] Fix double free of log tickets 2008-11-17 17:37:10 +11:00
xfs_utils.h
xfs_vfsops.c [XFS] kill struct xfs_mount_args 2008-10-30 17:53:24 +11:00
xfs_vfsops.h [XFS] Move remaining quiesce code. 2008-10-30 17:16:21 +11:00
xfs_vnodeops.c [XFS] Fix double free of log tickets 2008-11-17 17:37:10 +11:00
xfs_vnodeops.h [XFS] kill sys_cred 2008-10-30 18:27:48 +11:00