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| author | Theodore Ts'o <tytso@mit.edu> | 2009-03-05 03:31:53 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-03-05 03:31:53 +0300 |
| commit | 7d39db14a42cbd719c7515b9da8f85a2eb6a0633 (patch) | |
| tree | 5c93b9f76c9895183d1e973ed296cd9b7a1d9a0e /fs/ext4/super.c | |
| parent | 9f24e4208f7ee2748f157368b63287dc903fcf60 (diff) | |
| download | linux-7d39db14a42cbd719c7515b9da8f85a2eb6a0633.tar.xz | |
ext4: Use struct flex_groups to calculate get_orlov_stats()
Instead of looping over all of the block groups in a flex group
summing their summary statistics, start tracking used_dirs in struct
flex_groups, and use struct flex_groups instead. This should save a
bit of CPU for mkdir-heavy workloads.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/super.c')
| -rw-r--r-- | fs/ext4/super.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 6b5d5c6399fa..b9aefceb41e7 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1634,6 +1634,8 @@ static int ext4_fill_flex_info(struct super_block *sb) ext4_free_inodes_count(sb, gdp)); atomic_set(&sbi->s_flex_groups[flex_group].free_blocks, ext4_free_blks_count(sb, gdp)); + atomic_set(&sbi->s_flex_groups[flex_group].used_dirs, + ext4_used_dirs_count(sb, gdp)); } return 1; |