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| author | Theodore Ts'o <tytso@mit.edu> | 2009-03-04 19:09:10 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-03-04 19:09:10 -0500 |
| commit | 9f24e4208f7ee2748f157368b63287dc903fcf60 (patch) | |
| tree | 255989fe69ebfb2b031dc7cf6dbe975df67c711a /fs/ext4/ext4.h | |
| parent | b713a5ec55bf73c833f9883cdd761b20ee61a1ab (diff) | |
| download | kernel-crypto-9f24e4208f7ee2748f157368b63287dc903fcf60.tar.gz kernel-crypto-9f24e4208f7ee2748f157368b63287dc903fcf60.tar.xz kernel-crypto-9f24e4208f7ee2748f157368b63287dc903fcf60.zip | |
ext4: Use atomic_t's in struct flex_groups
Reduce pressure on the sb_bgl_lock family of locks by using atomic_t's
to track the number of free blocks and inodes in each flex_group.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index e5c273ff928..e52b48f86ed 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -170,8 +170,8 @@ struct ext4_group_desc */ struct flex_groups { - __u32 free_inodes; - __u32 free_blocks; + atomic_t free_inodes; + atomic_t free_blocks; }; #define EXT4_BG_INODE_UNINIT 0x0001 /* Inode table/bitmap not in use */ |