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linux-next/fs/ext2
Badari Pulavarty 2235219b77 ext2: statfs speed up
This is a patch that speeds up statfs.  It is very simple - the "overhead"
calculation, which takes a huge amount of time for large filesystems, never
changes unless the size of the filesystem itself changes.  That means we can
store it in memory and only recalculate if the filesystem has been resized
(almost never).

It also fixes a minor problem that we never update the on-disk superblock free
blocks/inodes counts until the filesystem is unmounted.  While not fatal, we
may as well update that on disk when we have the information, and it makes
things like debugfs and dumpe2fs report a bit more accurate info.

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:52 -07:00
..
acl.c [PATCH] fs: Removing useless casts 2006-09-27 08:26:10 -07:00
acl.h [PATCH] remove <linux/xattr_acl.h> 2005-06-23 09:45:33 -07:00
balloc.c [PATCH] ext[234]: update documentation 2007-02-20 17:10:14 -08:00
dir.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ext2.h ext3: copy i_flags to inode flags on write 2007-05-08 11:15:13 -07:00
file.c ext2: fix a comment when ext2_release_file() is called 2007-07-16 09:05:44 -07:00
fsync.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ialloc.c [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
inode.c ext3: copy i_flags to inode flags on write 2007-05-08 11:15:13 -07:00
ioctl.c ext3: copy i_flags to inode flags on write 2007-05-08 11:15:13 -07:00
Makefile [PATCH] Make EXT2_DEBUG work again 2006-06-25 10:01:12 -07:00
namei.c [PATCH] mark struct inode_operations const 1 2007-02-12 09:48:46 -08:00
super.c ext2: statfs speed up 2007-07-16 09:05:52 -07:00
symlink.c [PATCH] mark struct inode_operations const 1 2007-02-12 09:48:46 -08:00
xattr_security.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
xattr_trusted.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
xattr_user.c [PATCH] remove ext2 xattr permission checks 2006-01-10 08:01:30 -08:00
xattr.c [PATCH] Remove superfluous lock_super() in extN xattr code 2006-12-07 08:39:32 -08:00
xattr.h Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
xip.c [PATCH] fix xip sparse file handling in ext2 2005-07-27 16:25:53 -07:00
xip.h [PATCH] xip: ext2: execute in place 2005-06-24 00:06:41 -07:00