diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-05-24 13:57:26 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@google.com> | 2018-05-30 19:32:34 -0700 |
| commit | b68f27c36219064b6b9570ec5755dcdb1826a777 (patch) | |
| tree | 57c4a9fd86e608c050ac4fa025dc1dafff089d5c /Documentation/filesystems | |
| parent | c9d74f2522c4876c048d4a111de24a943ea16095 (diff) | |
FROMLIST: f2fs: early updates queued for v4.18-rc1
Cherry-picked from:
origin/upstream-f2fs-stable-linux-4.4.y
85d2070f60c6 ("f2fs: turn down IO priority of discard from background")
4738f527db84 ("f2fs: don't split checkpoint in fstrim")
31e2713935ea ("f2fs: issue discard commands proactively in high fs utilization")
70676ef73646 ("f2fs: add fsync_mode=nobarrier for non-atomic files")
bb53d06b5f21 ("f2fs: let fstrim issue discard commands in lower priority")
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/f2fs.txt | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index 1f52baea2f69..ecccb51c7279 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -180,13 +180,15 @@ whint_mode=%s Control which write hints are passed down to block passes down hints with its policy. alloc_mode=%s Adjust block allocation policy, which supports "reuse" and "default". -fsync_mode=%s Control the policy of fsync. Currently supports "posix" - and "strict". In "posix" mode, which is default, fsync - will follow POSIX semantics and does a light operation - to improve the filesystem performance. In "strict" mode, - fsync will be heavy and behaves in line with xfs, ext4 - and btrfs, where xfstest generic/342 will pass, but the - performance will regress. +fsync_mode=%s Control the policy of fsync. Currently supports "posix", + "strict", and "nobarrier". In "posix" mode, which is + default, fsync will follow POSIX semantics and does a + light operation to improve the filesystem performance. + In "strict" mode, fsync will be heavy and behaves in line + with xfs, ext4 and btrfs, where xfstest generic/342 will + pass, but the performance will regress. "nobarrier" is + based on "posix", but doesn't issue flush command for + non-atomic files likewise "nobarrier" mount option. test_dummy_encryption Enable dummy encryption, which provides a fake fscrypt context. The fake fscrypt context is used by xfstests. |