kernel_optimize_test/include
Badari Pulavarty a71ce8c6c9 ext3: 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
..
acpi
asm-alpha fix alpha ISA support 2007-07-16 09:05:37 -07:00
asm-arm page table handling cleanup 2007-07-16 09:05:36 -07:00
asm-arm26 dma-mapping: prevent dma dependent code from linking on !HAS_DMA archs 2007-07-16 09:05:45 -07:00
asm-avr32 page table handling cleanup 2007-07-16 09:05:36 -07:00
asm-blackfin Blackfin arch: Add peripheral io API to gpio header file 2007-07-12 17:06:45 +08:00
asm-cris etrax: enable arbitary speed setting on tty ports 2007-07-16 09:05:38 -07:00
asm-frv FRV: Connect up new syscalls 2007-07-16 09:05:37 -07:00
asm-generic Introduce O_CLOEXEC 2007-07-16 09:05:45 -07:00
asm-h8300 dma-mapping: prevent dma dependent code from linking on !HAS_DMA archs 2007-07-16 09:05:45 -07:00
asm-i386 make seccomp zerocost in schedule 2007-07-16 09:05:50 -07:00
asm-ia64 Introduce compat_u64 and compat_s64 types 2007-07-16 09:05:48 -07:00
asm-m32r dma-mapping: prevent dma dependent code from linking on !HAS_DMA archs 2007-07-16 09:05:45 -07:00
asm-m68k page table handling cleanup 2007-07-16 09:05:36 -07:00
asm-m68knommu PCI: remove pci_dac_dma_... APIs 2007-07-11 16:02:11 -07:00
asm-mips Introduce compat_u64 and compat_s64 types 2007-07-16 09:05:48 -07:00
asm-parisc Introduce compat_u64 and compat_s64 types 2007-07-16 09:05:48 -07:00
asm-powerpc Introduce compat_u64 and compat_s64 types 2007-07-16 09:05:48 -07:00
asm-ppc page table handling cleanup 2007-07-16 09:05:36 -07:00
asm-s390 Introduce compat_u64 and compat_s64 types 2007-07-16 09:05:48 -07:00
asm-sh page table handling cleanup 2007-07-16 09:05:36 -07:00
asm-sh64 page table handling cleanup 2007-07-16 09:05:36 -07:00
asm-sparc page table handling cleanup 2007-07-16 09:05:36 -07:00
asm-sparc64 Introduce compat_u64 and compat_s64 types 2007-07-16 09:05:48 -07:00
asm-um Add generic exit-time stack-depth checking to CONFIG_DEBUG_STACK_USAGE 2007-07-16 09:05:38 -07:00
asm-v850 v850: enable arbitary speed tty ioctls 2007-07-16 09:05:39 -07:00
asm-x86_64 Introduce compat_u64 and compat_s64 types 2007-07-16 09:05:48 -07:00
asm-xtensa page table handling cleanup 2007-07-16 09:05:36 -07:00
crypto
keys
linux ext3: statfs speed up 2007-07-16 09:05:52 -07:00
math-emu
media
mtd
net Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2007-07-15 16:50:46 -07:00
pcmcia PCMCIA-NETDEV : add new ID of lan&modem multifunction card 2007-07-08 22:16:39 -04:00
rdma IB/cm: Include HCA ACK delay in local ACK timeout 2007-07-10 21:50:05 -07:00
rxrpc
scsi [SCSI] Remove unused method scsi_device_cancel 2007-07-14 16:01:16 -05:00
sound
video
Kbuild