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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-03-24 20:41:45 -0400 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-03-29 17:34:37 -0700 |
| commit | 7a20b8a61eff81bdb7097a578752a74860e9d142 (patch) | |
| tree | aebd2031eeea3771201126c0b4020e4f09d6a20a /fs/f2fs/super.c | |
| parent | c541a51b8ce81d003b02ed67ad3604a2e6220e3e (diff) | |
| download | lwn-7a20b8a61eff81bdb7097a578752a74860e9d142.tar.gz lwn-7a20b8a61eff81bdb7097a578752a74860e9d142.zip | |
f2fs: allocate node and hot data in the beginning of partition
In order to give more spatial locality, this patch changes the block allocation
policy which assigns beginning of partition for small and hot data/node blocks.
In order to do this, we set noheap allocation by default and introduce another
mount option, heap, to reset it back.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 49434f951ace..f315b54cd840 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -83,6 +83,7 @@ enum { Opt_discard, Opt_nodiscard, Opt_noheap, + Opt_heap, Opt_user_xattr, Opt_nouser_xattr, Opt_acl, @@ -117,6 +118,7 @@ static match_table_t f2fs_tokens = { {Opt_discard, "discard"}, {Opt_nodiscard, "nodiscard"}, {Opt_noheap, "no_heap"}, + {Opt_heap, "heap"}, {Opt_user_xattr, "user_xattr"}, {Opt_nouser_xattr, "nouser_xattr"}, {Opt_acl, "acl"}, @@ -437,6 +439,9 @@ static int parse_options(struct super_block *sb, char *options) case Opt_noheap: set_opt(sbi, NOHEAP); break; + case Opt_heap: + clear_opt(sbi, NOHEAP); + break; #ifdef CONFIG_F2FS_FS_XATTR case Opt_user_xattr: set_opt(sbi, XATTR_USER); @@ -914,7 +919,9 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) if (test_opt(sbi, DISCARD)) seq_puts(seq, ",discard"); if (test_opt(sbi, NOHEAP)) - seq_puts(seq, ",no_heap_alloc"); + seq_puts(seq, ",no_heap"); + else + seq_puts(seq, ",heap"); #ifdef CONFIG_F2FS_FS_XATTR if (test_opt(sbi, XATTR_USER)) seq_puts(seq, ",user_xattr"); @@ -1047,6 +1054,7 @@ static void default_options(struct f2fs_sb_info *sbi) set_opt(sbi, INLINE_DATA); set_opt(sbi, INLINE_DENTRY); set_opt(sbi, EXTENT_CACHE); + set_opt(sbi, NOHEAP); sbi->sb->s_flags |= MS_LAZYTIME; set_opt(sbi, FLUSH_MERGE); if (f2fs_sb_mounted_blkzoned(sbi->sb)) { |