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zfs/include/sys
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Brian Behlendorf 8780c53961 Update SAs when an inode is dirtied 
Revert the portion of commit d3aa3ea which always resulted in the
SAs being update when an mmap()'ed file was closed.  That change
accidentally resulted in unexpected ctime updates which upset tools
like git.  That was always a horrible hack and I'm happy it will
never make it in to a tagged release.

The right fix is something I initially resisted doing because I
was worried about the additional overhead.  However, in hindsight
the overhead isn't as bad as I feared.

This patch implemented the sops->dirty_inode() callback which is
unsurprisingly called when an inode is dirtied.  We leverage this
callback to keep the znode SAs strictly in sync with the inode.

However, for now we're going to go slowly to avoid introducing
any new unexpected issues by only updating the atime, mtime, and
ctime.  This will cover the callpath of most concern to us.

  ->filemap_page_mkwrite->file_update_time->update_time->
      mark_inode_dirty_sync->__mark_inode_dirty->dirty_inode

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #764
Closes #1140
 		2012-12-14 12:18:54 -08:00
..
fm Illumos #2671: zpool import should not fail if vdev ashift has increased 2012-11-15 11:05:59 -08:00
fs Illumos #2703: add mechanism to report ZFS send progress 2012-09-19 13:39:06 -07:00
Makefile.am Add .zfs control directory 2012-03-22 13:03:47 -07:00
arc.h Fix zfs_write_limit_max integer size mismatch on 32-bit systems 2012-10-11 11:09:25 -07:00
avl.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
avl_impl.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
bplist.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
bpobj.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
dbuf.h Switch KM_SLEEP to KM_PUSHPAGE 2012-08-27 12:01:37 -07:00
ddt.h Add ddt_object_count() error handling 2012-10-29 08:57:45 -07:00
dmu.h Illumos #2703: add mechanism to report ZFS send progress 2012-09-19 13:39:06 -07:00
dmu_impl.h Illumos #2703: add mechanism to report ZFS send progress 2012-09-19 13:39:06 -07:00
dmu_objset.h Illumos #3100: zvol rename fails with EBUSY when dirty. 2012-10-03 13:59:02 -07:00
dmu_traverse.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
dmu_tx.h Add --enable-debug-dmu-tx configure option 2012-03-23 12:25:17 -07:00
dmu_zfetch.h Add missing ZFS tunables 2011-05-04 10:02:37 -07:00
dnode.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
dsl_dataset.h Illumos #3100: zvol rename fails with EBUSY when dirty. 2012-10-03 13:59:02 -07:00
dsl_deadlist.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
dsl_deleg.h Illumos #1644, #1645, #1646, #1647, #1708 2012-07-31 09:25:30 -07:00
dsl_dir.h Switch KM_SLEEP to KM_PUSHPAGE 2012-08-27 12:01:37 -07:00
dsl_pool.h Add txgs-<pool> kstat file 2012-11-02 15:45:56 -07:00
dsl_prop.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
dsl_scan.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
dsl_synctask.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
efi_partition.h Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
metaslab.h Add FASTWRITE algorithm for synchronous writes. 2012-10-17 08:56:41 -07:00
metaslab_impl.h Add FASTWRITE algorithm for synchronous writes. 2012-10-17 08:56:41 -07:00
nvpair.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
nvpair_impl.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
refcount.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
rrwlock.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
sa.h Add sa_spill_rele() interface 2012-03-07 16:28:00 -08:00
sa_impl.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
spa.h Switch KM_SLEEP to KM_PUSHPAGE 2012-08-27 12:01:37 -07:00
spa_boot.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
spa_impl.h Illumos #1693: persistent 'comment' field for a zpool 2012-08-08 11:49:37 -07:00
space_map.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
txg.h Fix zfs_txg_timeout module parameter 2012-10-11 15:07:09 -07:00
txg_impl.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
u8_textprep.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
u8_textprep_data.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
uberblock.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
uberblock_impl.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
uio_impl.h Add basic uio support 2011-02-10 09:21:43 -08:00
unique.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
uuid.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
vdev.h Illumos #1949, #1953 2012-07-11 13:33:31 -07:00
vdev_disk.h Linux 2.6.x compat, blkdev_compat.h 2011-02-23 12:29:38 -08:00
vdev_file.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
vdev_impl.h Add FASTWRITE algorithm for synchronous writes. 2012-10-17 08:56:41 -07:00
xvattr.h Add xvattr support 2011-03-02 11:43:50 -08:00
zap.h Export symbols for the full ZAP API 2011-09-27 16:12:36 -07:00
zap_impl.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
zap_leaf.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
zfs_acl.h Fix build failures on PaX/GRSecurity patched kernels 2012-07-17 09:22:43 -07:00
zfs_context.h Fix VOP_CLOSE() in userspace. 2012-10-03 13:32:48 -07:00
zfs_ctldir.h Linux 3.7 compat, schedule_delayed_work() 2012-12-12 10:47:05 -08:00
zfs_debug.h Cleanly support debug packages 2012-02-27 14:08:17 -08:00
zfs_dir.h Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
zfs_fuid.h Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
zfs_ioctl.h Speed up 'zfs list -t snapshot -o name -s name' 2012-06-14 09:49:04 -07:00
zfs_onexit.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
zfs_rlock.h Range lock performance improvements 2011-03-08 12:44:06 -08:00
zfs_sa.h Implement SA based xattrs 2011-11-28 15:45:51 -08:00
zfs_stat.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
zfs_vfsops.h Increase ZFS_OBJ_MTX_SZ to 256 2012-11-27 13:46:32 -08:00
zfs_vnops.h Update SAs when an inode is dirtied 2012-12-14 12:18:54 -08:00
zfs_znode.h Directory xattr znodes hold a reference on their parent 2012-12-03 12:10:46 -08:00
zil.h Add ZIL statistics. 2012-06-29 09:56:51 -07:00
zil_impl.h Add FASTWRITE algorithm for synchronous writes. 2012-10-17 08:56:41 -07:00
zio.h Add FASTWRITE algorithm for synchronous writes. 2012-10-17 08:56:41 -07:00
zio_checksum.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
zio_compress.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
zio_impl.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
zpl.h Linux 3.3 compat, iops->create()/mkdir()/mknod() 2012-04-30 12:52:38 -07:00
zrlock.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
zvol.h Linux 2.6.x compat, blkdev_compat.h 2011-02-23 12:29:38 -08:00