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Commit 7daaea25 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: add noextent_cache mount option 



This patch adds noextent_cache mount option.

Reviewed-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 554df79e

Documentation/filesystems/f2fs.txt

+3 −1
Original line number Diff line number Diff line
@@ -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.

fs/f2fs/super.c

+7 −0
Original line number Diff line number Diff line
@@ -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;