Curt Wohlgemuth fb1813f4a8 ext4: use dedicated slab caches for group_info structures ... ext4_group_info structures are currently allocated with kmalloc(). With a typical 4K block size, these are 136 bytes each -- meaning they'll each consume a 256-byte slab object. On a system with many ext4 large partitions, that's a lot of wasted kernel slab space. (E.g., a single 1TB partition will have about 8000 block groups, using about 2MB of slab, of which nearly 1MB is wasted.) This patch creates an array of slab pointers created as needed -- depending on the superblock block size -- and uses these slabs to allocate the group info objects. Google-Bug-Id: 2980809 Signed-off-by: Curt Wohlgemuth <curtw@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>		2010-10-27 21:29:12 -04:00
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acl.c	ext4: update ctime when changing the file's permission by setfacl	2010-06-15 12:19:59 -04:00
acl.h	ext[234]: move over to 'check_acl' permission model	2009-09-08 11:09:04 -07:00
balloc.c	ext4: Clean up s_dirt handling	2010-06-11 23:14:04 -04:00
bitmap.c	ext4: Change unsigned long to unsigned int	2008-11-05 00:14:04 -05:00
block_validity.c	ext4: Save error information to the superblock for analysis	2010-07-27 11:56:03 -04:00
dir.c	ext4: Remove unnecessary casts of private_data	2010-07-27 11:56:04 -04:00
ext4_extents.h	ext4: Calculate metadata requirements more accurately	2010-01-01 02:41:30 -05:00
ext4_jbd2.c	ext4: Pass line numbers to ext4_error() and friends	2010-07-27 11:56:40 -04:00
ext4_jbd2.h	ext4: Pass line numbers to ext4_error() and friends	2010-07-27 11:56:40 -04:00
ext4.h	ext4: use dedicated slab caches for group_info structures	2010-10-27 21:29:12 -04:00
extents.c	ext4: fix EOFBLOCKS_FL handling	2010-10-27 21:23:12 -04:00
file.c	ext4: fix EFBIG edge case when writing to large non-extent file	2010-07-27 11:56:07 -04:00
fsync.c	rename the generic fsync implementations	2010-05-27 22:06:06 -04:00
hash.c	ext4: Add support for non-native signed/unsigned htree hash algorithms	2008-10-28 13:21:44 -04:00
ialloc.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
ioctl.c	ext4: Drop whitespace at end of lines	2010-05-17 07:00:00 -04:00
Kconfig	ext4: Don't ask about supporting ext2/3 in ext4 if ext4 is not configured	2009-12-21 10:54:09 -05:00
Makefile	ext4: online defrag -- Add EXT4_IOC_MOVE_EXT ioctl	2009-06-17 19:24:03 -04:00
mballoc.c	ext4: use dedicated slab caches for group_info structures	2010-10-27 21:29:12 -04:00
mballoc.h	ext4: consolidate in_range() definitions	2010-03-03 23:55:01 -05:00
migrate.c	ext4: Convert more i_flags references to use accessor functions	2010-06-14 09:54:48 -04:00
move_extent.c	ext4: Pass line numbers to ext4_error() and friends	2010-07-27 11:56:40 -04:00
namei.c	ext4: re-inline ext4_rec_len_(to|from)_disk functions	2010-08-05 01:46:37 -04:00
resize.c	ext4: remove initialized but not read variables	2010-06-14 13:28:03 -04:00
super.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
symlink.c	ext4: symlink must be handled via filesystem specific operation	2010-05-16 02:00:00 -04:00
xattr_security.c	ext4: constify xattr_handler	2010-05-21 18:31:19 -04:00
xattr_trusted.c	ext4: constify xattr_handler	2010-05-21 18:31:19 -04:00
xattr_user.c	ext4: constify xattr_handler	2010-05-21 18:31:19 -04:00
xattr.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-08-10 11:26:52 -07:00
xattr.h	ext4: constify xattr_handler	2010-05-21 18:31:19 -04:00