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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-06-25 17:43:04 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-08-04 14:09:55 -0700 |
| commit | 7daaea256de42da112805703e3c77f08973156b3 (patch) | |
| tree | dd4bbbe38a7d4839c70f463c576f5e7c8b5f3f6e | |
| parent | 554df79e523d14dab475eb6650cb96617256ceea (diff) | |
| download | linux-7daaea256de42da112805703e3c77f08973156b3.tar.gz linux-7daaea256de42da112805703e3c77f08973156b3.tar.bz2 linux-7daaea256de42da112805703e3c77f08973156b3.zip | |
f2fs: add noextent_cache mount option
This patch adds noextent_cache mount option.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | Documentation/filesystems/f2fs.txt | 4 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 7 |
2 files changed, 10 insertions, 1 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index e9e750e59efc..e2d5105b7214 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -143,7 +143,9 @@ fastboot This option is used when a system wants to reduce mount extent_cache Enable an extent cache based on rb-tree, it can cache as many as extent which map between contiguous logical address and physical address per inode, resulting in - increasing the cache hit ratio. + increasing the cache hit ratio. Set by default. +noextent_cache Diable an extent cache based on rb-tree explicitly, see + the above extent_cache mount option. noinline_data Disable the inline data feature, inline data feature is enabled by default. diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index bc7684b6d57a..92520228ce71 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -65,6 +65,7 @@ enum { Opt_nobarrier, Opt_fastboot, Opt_extent_cache, + Opt_noextent_cache, Opt_noinline_data, Opt_err, }; @@ -88,6 +89,7 @@ static match_table_t f2fs_tokens = { {Opt_nobarrier, "nobarrier"}, {Opt_fastboot, "fastboot"}, {Opt_extent_cache, "extent_cache"}, + {Opt_noextent_cache, "noextent_cache"}, {Opt_noinline_data, "noinline_data"}, {Opt_err, NULL}, }; @@ -389,6 +391,9 @@ static int parse_options(struct super_block *sb, char *options) case Opt_extent_cache: set_opt(sbi, EXTENT_CACHE); break; + case Opt_noextent_cache: + clear_opt(sbi, EXTENT_CACHE); + break; case Opt_noinline_data: clear_opt(sbi, INLINE_DATA); break; @@ -662,6 +667,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) seq_puts(seq, ",fastboot"); if (test_opt(sbi, EXTENT_CACHE)) seq_puts(seq, ",extent_cache"); + else + seq_puts(seq, ",noextent_cache"); seq_printf(seq, ",active_logs=%u", sbi->active_logs); return 0; |