提交 7daaea25 编写于 作者: J Jaegeuk Kim

f2fs: add noextent_cache mount option

This patch adds noextent_cache mount option.
Reviewed-by: NChao Yu <chao2.yu@samsung.com>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
上级 554df79e
......@@ -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.
......
......@@ -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;
......
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