Linus Torvalds 0b832a4b93 Revert "ext2/ext3/ext4: add block bitmap validation" ... This reverts commit 7c9e69faa2, fixing up conflicts in fs/ext4/balloc.c manually. The cost of doing the bitmap validation on each lookup - even when the bitmap is cached - is absolutely prohibitive. We could, and probably should, do it only when adding the bitmap to the buffer cache. However, right now we are better off just reverting it. Peter Zijlstra measured the cost of this extra validation as a 85% decrease in cached iozone, and while I had a patch that took it down to just 17% by not being _quite_ so stupid in the validation, it was still a big slowdown that could have been avoided by just doing it right. Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com> Cc: Andreas Dilger <adilger@clusterfs.com> Cc: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-11-13 08:09:11 -08:00
..
acl.c
acl.h
balloc.c	Revert "ext2/ext3/ext4: add block bitmap validation"	2007-11-13 08:09:11 -08:00
bitmap.c
dir.c
ext4_jbd2.c
extents.c
file.c
fsync.c
group.h
hash.c
ialloc.c
inode.c
ioctl.c	ext4: Add nanosecond timestamps	2007-07-18 09:15:20 -04:00
Makefile
namei.c
namei.h
resize.c
super.c
symlink.c
xattr_security.c
xattr_trusted.c
xattr_user.c
xattr.c
xattr.h