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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-03 08:53:49 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-03 08:53:49 -0800
commitfeaf77d51a6e2e95f60c8095ac7282e610ede798 (patch)
tree77f446c0ac5d58eeb725975a1b579eda22f1f2e5 /Documentation/filesystems
parenteca281aad0c293e7698edea5834c252dd8108afa (diff)
parent0d561f12b490dd2b993d73112d3297007688e6df (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: nilfs2: add reader's lock for cno in nilfs_ioctl_sync nilfs2: delete unnecessary condition in load_segment_summary nilfs2: move iterator to write log into segment buffer nilfs2: get rid of s_dirt flag use nilfs2: get rid of nilfs_segctor_req struct nilfs2: delete unnecessary condition in nilfs_dat_translate nilfs2: fix potential hang in nilfs_error on errors=remount-ro nilfs2: use mnt_want_write in ioctls where write access is needed nilfs2: issue discard request after cleaning segments
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/nilfs2.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/filesystems/nilfs2.txt b/Documentation/filesystems/nilfs2.txt
index 839efd8a8a8..cf6d0d85ca8 100644
--- a/Documentation/filesystems/nilfs2.txt
+++ b/Documentation/filesystems/nilfs2.txt
@@ -74,6 +74,9 @@ norecovery Disable recovery of the filesystem on mount.
This disables every write access on the device for
read-only mounts or snapshots. This option will fail
for r/w mounts on an unclean volume.
+discard Issue discard/TRIM commands to the underlying block
+ device when blocks are freed. This is useful for SSD
+ devices and sparse/thinly-provisioned LUNs.
NILFS2 usage
============