diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2012-04-16 12:16:20 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-22 15:30:59 -0700 |
| commit | 23066aae743c617dcd1f77a64f6d44bebf87b097 (patch) | |
| tree | 75db3403cb9c83529d8befc710d0de8f5c1fc1f3 /fs/ext4/ext4.h | |
| parent | 250a9e89bb62efc7719cc44f0e19536d58ab51d7 (diff) | |
ext4: address scalability issue by removing extent cache statistics
commit 9cd70b347e9761ea2d2ac3d758c529a48a8193e6 upstream.
Andi Kleen and Tim Chen have reported that under certain circumstances
the extent cache statistics are causing scalability problems due to
cache line bounces.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index dbae4d98dab..7b1cd5c65d6 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1185,9 +1185,6 @@ struct ext4_sb_info { unsigned long s_ext_blocks; unsigned long s_ext_extents; #endif - /* ext4 extent cache stats */ - unsigned long extent_cache_hits; - unsigned long extent_cache_misses; /* for buddy allocator */ struct ext4_group_info ***s_group_info; |