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authorTheodore Ts'o <tytso@mit.edu>2010-10-27 23:44:47 -0400
committerTheodore Ts'o <tytso@mit.edu>2010-10-27 23:44:47 -0400
commita107e5a3a473a2ea62bd5af24e11b84adf1486ff (patch)
treed36c2cb38d8be88d4d75cdebc354aa140aa0e470 /Documentation/filesystems
parente3e1288e86a07cdeb0aee5860a2dff111c6eff79 (diff)
parenta269029d0e2192046be4c07ed78a45022469ee4c (diff)
Merge branch 'next' into upstream-merge
Conflicts: fs/ext4/inode.c fs/ext4/mballoc.c include/trace/events/ext4.h
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/ext4.txt14
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index e1def1786e50..6ab9442d7eeb 100644
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -353,6 +353,20 @@ noauto_da_alloc replacing existing files via patterns such as
353 system crashes before the delayed allocation 353 system crashes before the delayed allocation
354 blocks are forced to disk. 354 blocks are forced to disk.
355 355
356noinit_itable Do not initialize any uninitialized inode table
357 blocks in the background. This feature may be
358 used by installation CD's so that the install
359 process can complete as quickly as possible; the
360 inode table initialization process would then be
361 deferred until the next time the file system
362 is unmounted.
363
364init_itable=n The lazy itable init code will wait n times the
365 number of milliseconds it took to zero out the
366 previous block group's inode table. This
367 minimizes the impact on the systme performance
368 while file system's inode table is being initialized.
369
356discard Controls whether ext4 should issue discard/TRIM 370discard Controls whether ext4 should issue discard/TRIM
357nodiscard(*) commands to the underlying block device when 371nodiscard(*) commands to the underlying block device when
358 blocks are freed. This is useful for SSD devices 372 blocks are freed. This is useful for SSD devices