original_kernel/fs/ext2
Dave Kleikamp 833f73299f [PATCH] EXT2: Remove superblock lock contention in ext2_statfs
Fix a performance degradation introduced in 2.6.17.  (30% degradation
running dbench with 16 threads)

Commit 21730eed11, which claims to make
EXT2_DEBUG work again, moves the taking of the kernel lock out of
debug-only code in ext2_count_free_inodes and ext2_count_free_blocks and
into ext2_statfs.

The same problem was fixed in ext3 by removing the lock completely (commit
5b11687924)

Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-19 07:59:59 -07:00
..
Makefile
acl.c
acl.h
balloc.c [PATCH] EXT2: Remove superblock lock contention in ext2_statfs 2006-09-19 07:59:59 -07:00
dir.c
ext2.h
file.c
fsync.c
ialloc.c [PATCH] EXT2: Remove superblock lock contention in ext2_statfs 2006-09-19 07:59:59 -07:00
inode.c
ioctl.c
namei.c
super.c [PATCH] EXT2: Remove superblock lock contention in ext2_statfs 2006-09-19 07:59:59 -07:00
symlink.c
xattr.c
xattr.h
xattr_security.c
xattr_trusted.c
xattr_user.c
xip.c
xip.h