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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-07-23 09:57:31 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-07-29 05:27:48 -0700 |
| commit | 0f7b2abd188089a44f60e2bf8521d1363ada9e12 (patch) | |
| tree | b03702e8aadcf265bb796c3ec31413ea081fb136 /fs/f2fs/super.c | |
| parent | 9d847950770da7102d4efc02d0939ce28e3a7dd0 (diff) | |
| download | op-kernel-dev-0f7b2abd188089a44f60e2bf8521d1363ada9e12.zip op-kernel-dev-0f7b2abd188089a44f60e2bf8521d1363ada9e12.tar.gz | |
f2fs: add nobarrier mount option
This patch adds a mount option, nobarrier, in f2fs.
The assumption in here is that file system keeps the IO ordering, but
doesn't care about cache flushes inside the storages.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 34649aa..93593ce 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -52,6 +52,7 @@ enum { Opt_inline_xattr, Opt_inline_data, Opt_flush_merge, + Opt_nobarrier, Opt_err, }; @@ -69,6 +70,7 @@ static match_table_t f2fs_tokens = { {Opt_inline_xattr, "inline_xattr"}, {Opt_inline_data, "inline_data"}, {Opt_flush_merge, "flush_merge"}, + {Opt_nobarrier, "nobarrier"}, {Opt_err, NULL}, }; @@ -339,6 +341,9 @@ static int parse_options(struct super_block *sb, char *options) case Opt_flush_merge: set_opt(sbi, FLUSH_MERGE); break; + case Opt_nobarrier: + set_opt(sbi, NOBARRIER); + break; default: f2fs_msg(sb, KERN_ERR, "Unrecognized mount option \"%s\" or missing value", @@ -544,6 +549,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) seq_puts(seq, ",inline_data"); if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) seq_puts(seq, ",flush_merge"); + if (test_opt(sbi, NOBARRIER)) + seq_puts(seq, ",nobarrier"); seq_printf(seq, ",active_logs=%u", sbi->active_logs); return 0; |
