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| author |   Alexey Dobriyan <adobriyan@gmail.com> | 2007-05-08 00:24:55 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:15:00 -0700 |
| commit | fe08a9d4982d9618ec25760ea715c46fe051e508 (patch) | |
| tree | 6535cfaf206d19cb0a5e09192f49b37e91ba6232 /kernel/module.c | |
| parent | Apple SMC driver (hardware monitoring and control) (diff) | |
| download | linux-dev-fe08a9d4982d9618ec25760ea715c46fe051e508.tar.xz linux-dev-fe08a9d4982d9618ec25760ea715c46fe051e508.zip | |
reiserfs: shrink superblock if no xattrs
This makes in-core superblock fit into one cacheline here.
Before:
struct dentry * xattr_root; /* 124 4 */
/* --- cacheline 1 boundary (128 bytes) --- */
struct rw_semaphore xattr_dir_sem; /* 128 12 */
int j_errno; /* 140 4 */
}; /* size: 144, cachelines: 2 */
/* sum members: 142, holes: 1, sum holes: 2 */
/* last cacheline: 16 bytes */
After:
int j_errno; /* 124 4 */
/* --- cacheline 1 boundary (128 bytes) --- */
}; /* size: 128, cachelines: 1 */
/* sum members: 126, holes: 1, sum holes: 2 */
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <reiserfs-dev@namesys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions