Christoph Hellwig 033da48fda xfs: reset the i_iolock lock class in the reclaim path ... The iolock is used for protecting reads, writes and block truncates against each other. We have two classes of callers, the first one is induced by a file operation and requires a reference to the inode be held and not dropped after the operation is done: - xfs_vm_vmap, xfs_vn_fallocate, xfs_read, xfs_write, xfs_splice_read, xfs_splice_write and xfs_setattr are all implementations of VFS methods that require a live inode - xfs_getbmap and xfs_swap_extents are ioctl subcommand for which the same is true - xfs_truncate_file is only called on quota inodes just returned from xfs_iget - xfs_sync_inode_data does the lock just after an igrab() - xfs_filestream_associate and xfs_filestream_new_ag take the iolock on the parent inode of an inode which by VFS rules must be referenced And we have various calls to truncate blocks past EOF or the whole file when dropping the last reference to an inode. Unfortunately lockdep complains when we do memory allocations that can recurse into the filesystem in the first class because the second class happens to take the same lock. To avoid this re-init the iolock in the beginning of xfs_fs_clear_inode to get a new lock class. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com> Signed-off-by: Alex Elder <aelder@sgi.com>		2009-12-11 15:11:20 -06:00
..
linux-2.6	xfs: reset the i_iolock lock class in the reclaim path	2009-12-11 15:11:20 -06:00
quota	xfs: fix double IRELE in xfs_dqrele_inode	2009-10-13 13:16:36 -05:00
support	xfs: cleanup uuid handling	2009-03-30 10:21:31 +02:00
Kconfig	xfs: use generic Posix ACL code	2009-06-10 17:07:47 +02:00
Makefile	xfs: use generic Posix ACL code	2009-06-10 17:07:47 +02:00
xfs.h
xfs_acl.h	switch xfs to generic acl caching helpers	2009-06-24 08:17:07 -04:00
xfs_ag.h	xfs: speed up free inode search	2009-09-01 12:45:48 -05:00
xfs_alloc.c	un-static xfs_read_agf	2009-08-31 14:46:21 -05:00
xfs_alloc.h	xfs: factor out code to find the longest free extent in the AG	2009-03-16 08:29:46 +01:00
xfs_alloc_btree.c	[XFS] Remove the rest of the macro-to-function indirections.	2009-01-19 14:45:55 +11:00
xfs_alloc_btree.h
xfs_arch.h	xfs: use generic Posix ACL code	2009-06-10 17:07:47 +02:00
xfs_attr.c	xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_get	2009-08-12 01:08:01 -05:00
xfs_attr.h
xfs_attr_leaf.c	xfs: remove m_attroffset	2009-03-29 19:26:46 +02:00
xfs_attr_leaf.h	[XFS] Remove macro-to-function indirections in attr code	2009-01-09 15:46:44 +11:00
xfs_attr_sf.h
xfs_bit.c
xfs_bit.h	[XFS] Remove macro-to-function indirections in the mask code	2009-01-09 15:53:54 +11:00
xfs_bmap.c	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_bmap.h	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_bmap_btree.c	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_bmap_btree.h	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_btree.c	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_btree.h	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_btree_trace.c
xfs_btree_trace.h
xfs_buf_item.c	[XFS] Remove XFS_BUF_SHUT() and friends	2008-12-22 17:52:58 +11:00
xfs_buf_item.h
xfs_da_btree.c	xfs: switch to NOFS allocation under i_lock in xfs_da_buf_make	2009-08-12 01:07:14 -05:00
xfs_da_btree.h	xfs: fix various typos	2009-03-29 09:55:42 +02:00
xfs_dfrag.c	xfs: implement ->dirty_inode to fix timestamp handling	2009-10-08 12:00:03 -05:00
xfs_dfrag.h	[XFS] Move copy_from_user calls out of ioctl helpers into ioctl switch.	2008-12-02 17:08:01 +11:00
xfs_dinode.h	xfs: remove m_litino	2009-03-29 09:51:14 +02:00
xfs_dir2.c	xfs: switch to NOFS allocation under i_lock in xfs_dir_cilookup_result	2009-08-12 01:07:23 -05:00
xfs_dir2.h
xfs_dir2_block.c	xfs: kill ino64 mount option	2009-03-29 09:51:08 +02:00
xfs_dir2_block.h
xfs_dir2_data.c
xfs_dir2_data.h	xfs: fix various typos	2009-03-29 09:55:42 +02:00
xfs_dir2_leaf.c	fix readahead calculations in xfs_dir2_leaf_getdents()	2009-10-08 12:02:12 -05:00
xfs_dir2_leaf.h
xfs_dir2_node.c	xfs: fix various typos	2009-03-29 09:55:42 +02:00
xfs_dir2_node.h
xfs_dir2_sf.c	xfs: kill ino64 mount option	2009-03-29 09:51:08 +02:00
xfs_dir2_sf.h	[XFS] kill xfs_dinode_core_t	2008-12-01 11:37:35 +11:00
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] avoid memory allocations in xfs_fs_vcmn_err	2008-12-22 18:02:01 +11:00
xfs_error.h	[XFS] avoid memory allocations in xfs_fs_vcmn_err	2008-12-22 18:02:01 +11:00
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] remove always-true #ifndef HAVE_FORMAT32 tests	2009-01-22 14:07:31 +11:00
xfs_filestream.c	xfs: split xfs_sync_inodes	2009-06-08 15:35:48 +02:00
xfs_filestream.h
xfs_fs.h	trivial: fix typo "for for" in multiple files	2009-09-21 15:14:54 +02:00
xfs_fsops.c	xfs: I/O completion handlers must use NOFS allocations	2009-12-11 15:11:20 -06:00
xfs_fsops.h	filesystem freeze: add error handling of write_super_lockfs/unlockfs	2009-01-09 16:54:42 -08:00
xfs_ialloc.c	xfs: free temporary cursor in xfs_dialloc	2009-10-30 09:27:07 +01:00
xfs_ialloc.h	xfs: rationalize xfs_inobt_lookup*	2009-09-01 12:45:39 -05:00
xfs_ialloc_btree.c	xfs: fix various typos	2009-03-29 09:55:42 +02:00
xfs_ialloc_btree.h	xfs: remove superflous inobt macros	2009-02-09 08:37:14 +01:00
xfs_iget.c	xfs: reset the i_iolock lock class in the reclaim path	2009-12-11 15:11:20 -06:00
xfs_inode.c	xfs: implement ->dirty_inode to fix timestamp handling	2009-10-08 12:00:03 -05:00
xfs_inode.h	xfs: implement ->dirty_inode to fix timestamp handling	2009-10-08 12:00:03 -05:00
xfs_inode_item.c	xfs: implement ->dirty_inode to fix timestamp handling	2009-10-08 12:00:03 -05:00
xfs_inode_item.h	xfs: simplify xfs_trans_iget	2009-09-01 12:46:16 -05:00
xfs_inum.h	xfs: remove XFS_INO64_OFFSET	2009-08-31 14:46:22 -05:00
xfs_iomap.c	xfs: I/O completion handlers must use NOFS allocations	2009-12-11 15:11:20 -06:00
xfs_iomap.h	xfs: remove xfs_flush_space	2009-04-06 18:49:12 +02:00
xfs_itable.c	xfs: implement ->dirty_inode to fix timestamp handling	2009-10-08 12:00:03 -05:00
xfs_itable.h	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_log.c	xfs: fix spin_is_locked assert on uni-processor builds	2009-08-12 01:08:27 -05:00
xfs_log.h	xfs: cleanup log unmount handling	2009-03-16 08:19:29 +01:00
xfs_log_priv.h	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_log_recover.c	XFS bug in log recover with quota (bugzilla id 855)	2009-11-17 10:26:38 -06:00
xfs_log_recover.h
xfs_mount.c	xfs: I/O completion handlers must use NOFS allocations	2009-12-11 15:11:20 -06:00
xfs_mount.h	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_mru_cache.c	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_mru_cache.h	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_quota.h	xfs: fix warnings with CONFIG_XFS_QUOTA disabled	2009-06-12 21:15:12 -05:00
xfs_refcache.h
xfs_rename.c	xfs: kill xfs_qmops	2009-06-08 15:33:32 +02:00
xfs_rtalloc.c	xfs: make sure to free the real-time inodes in the mount error path	2009-02-04 09:33:58 +01:00
xfs_rtalloc.h	xfs: fix various typos	2009-03-29 09:55:42 +02:00
xfs_rw.c	xfs: merge fsync and O_SYNC handling	2009-09-01 12:45:57 -05:00
xfs_rw.h	xfs: fix mmap_sem/iolock inversion in xfs_free_eofblocks	2009-12-11 15:11:19 -06:00
xfs_sb.h	[XFS] Remove the rest of the macro-to-function indirections.	2009-01-19 14:45:55 +11:00
xfs_trans.c	xfs: I/O completion handlers must use NOFS allocations	2009-12-11 15:11:20 -06:00
xfs_trans.h	xfs: I/O completion handlers must use NOFS allocations	2009-12-11 15:11:20 -06:00
xfs_trans_ail.c	xfs: copy li_lsn before dropping AIL lock	2009-11-17 10:26:49 -06:00
xfs_trans_buf.c	fs/xfs: Correct redundant test	2009-08-31 14:46:22 -05:00
xfs_trans_extfree.c
xfs_trans_inode.c	xfs: simplify xfs_trans_iget	2009-09-01 12:46:16 -05:00
xfs_trans_item.c	xfs: fix various typos	2009-03-29 09:55:42 +02:00
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: remove superflous inobt macros	2009-02-09 08:37:14 +01:00
xfs_types.h	xfs: remove uchar_t/ushort_t/uint_t/ulong_t types	2009-02-09 08:37:39 +01:00
xfs_utils.c	xfs: kill xfs_qmops	2009-06-08 15:33:32 +02:00
xfs_utils.h
xfs_vnodeops.c	xfs: fix mmap_sem/iolock inversion in xfs_free_eofblocks	2009-12-11 15:11:19 -06:00
xfs_vnodeops.h	xfs: simplify inode teardown	2009-12-11 15:11:19 -06:00