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Christoph Hellwig f9581b1443 xfs: implement ->dirty_inode to fix timestamp handling 
This is picking up on Felix's repost of Dave's patch to implement a
.dirty_inode method.  We really need this notification because
the VFS keeps writing directly into the inode structure instead
of going through methods to update this state.  In addition to
the long-known atime issue we now also have a caller in VM code
that updates c/mtime that way for shared writeable mmaps.  And
I found another one that no one has noticed in practice in the FIFO
code.

So implement ->dirty_inode to set i_update_core whenever the
inode gets externally dirtied, and switch the c/mtime handling to
the same scheme we already use for atime (always picking up
the value from the Linux inode).

Note that this patch also removes the xfs_synchronize_atime call
in xfs_reclaim it was superflous as we already synchronize the time
when writing the inode via the log (xfs_inode_item_format) or the
normal buffers (xfs_iflush_int).

In addition also remove the I_CLEAR check before copying the Linux
timestamps - now that we always have the Linux inode available
we can always use the timestamps in it.

Also switch to just using file_update_time for regular reads/writes -
that will get us all optimization done to it for free and make
sure we notice early when it breaks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
2009-10-08 12:00:03 -05:00
..
linux-2.6 xfs: implement ->dirty_inode to fix timestamp handling 2009-10-08 12:00:03 -05:00
quota xfs: switch to seq_file 2009-09-15 12:29:24 -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] make btree tracing generic 2008-10-30 16:55:13 +11:00
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] Always use struct xfs_btree_block instead of short / longform 2008-10-30 17:14:34 +11:00
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] Move attr log alloc size calculator to another function. 2008-08-13 16:03:35 +10:00
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] Use the generic bitops rather than implementing them ourselves. 2008-08-13 15:41:12 +10:00
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] 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] 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 xfs: kill ino64 mount option 2009-03-29 09:51:08 +02:00
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 removed unused #include <linux/version.h>'s 2008-08-23 12:14:12 -07:00
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 xfs: update max log size 2009-06-08 15:32:59 +02:00
xfs_fsops.c xfs: avoid memory allocation under m_peraglock in growfs code 2009-08-12 01:06:51 -05:00
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: un-static xfs_inobt_lookup 2009-09-01 20:43:01 -05:00
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: simplify xfs_trans_iget 2009-09-01 12:46:16 -05:00
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: use generic Posix ACL code 2009-06-10 17:07:47 +02:00
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: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_log_recover.h
xfs_mount.c xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
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: merge fsync and O_SYNC handling 2009-09-01 12:45:57 -05:00
xfs_sb.h [XFS] Remove the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_trans.c Merge branch 'master' of git://oss.sgi.com/xfs/xfs into for-linus 2009-06-12 21:28:59 -05:00
xfs_trans.h xfs: merge fsync and O_SYNC handling 2009-09-01 12:45:57 -05:00
xfs_trans_ail.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
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] implement IHOLD/IRELE directly 2008-08-13 16:13:45 +10:00
xfs_vnodeops.c xfs: implement ->dirty_inode to fix timestamp handling 2009-10-08 12:00:03 -05:00
xfs_vnodeops.h xfs: use generic Posix ACL code 2009-06-10 17:07:47 +02:00