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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-05-26 03:02:58 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-05-29 21:04:08 +0200 |
| commit | d6290814b018aa9a81163b4c806935b315041833 (patch) | |
| tree | aa4a5b75437e501032d8e8fbc6409f7cb0a9929a /fs/f2fs | |
| parent | f2fs: let fstrim issue discard commands in lower priority (diff) | |
| download | linux-d6290814b018aa9a81163b4c806935b315041833.tar.xz linux-d6290814b018aa9a81163b4c806935b315041833.zip | |
f2fs: add fsync_mode=nobarrier for non-atomic files
For non-atomic files, this patch adds an option to give nobarrier which
doesn't issue flush commands to the device.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 | ||||
| -rw-r--r-- | fs/f2fs/file.c | 2 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 4 |
3 files changed, 6 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index cbfe50d32d04..e852ac9472c6 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1082,6 +1082,7 @@ enum { enum fsync_mode { FSYNC_MODE_POSIX, /* fsync follows posix semantics */ FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */ + FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */ }; #ifdef CONFIG_F2FS_FS_ENCRYPTION diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index cc08956334a0..bd81207206d8 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -306,7 +306,7 @@ sync_nodes: remove_ino_entry(sbi, ino, APPEND_INO); clear_inode_flag(inode, FI_APPEND_WRITE); flush_out: - if (!atomic) + if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER) ret = f2fs_issue_flush(sbi, inode->i_ino); if (!ret) { remove_ino_entry(sbi, ino, UPDATE_INO); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index f31643718c76..c724347eed42 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -740,6 +740,10 @@ static int parse_options(struct super_block *sb, char *options) } else if (strlen(name) == 6 && !strncmp(name, "strict", 6)) { F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT; + } else if (strlen(name) == 9 && + !strncmp(name, "nobarrier", 9)) { + F2FS_OPTION(sbi).fsync_mode = + FSYNC_MODE_NOBARRIER; } else { kfree(name); return -EINVAL; |