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788e7dd4c2
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Yuichi Nakamura 788e7dd4c2 SELinux: Improve read/write performance 
It reduces the selinux overhead on read/write by only revalidating
permissions in selinux_file_permission if the task or inode labels have
changed or the policy has changed since the open-time check.  A new LSM
hook, security_dentry_open, is added to capture the necessary state at open
time to allow this optimization.

(see http://marc.info/?l=selinux&m=118972995207740&w=2)

Signed-off-by: Yuichi Nakamura<ynakam@hitachisoft.jp>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
2007-10-17 08:59:31 +10:00
..
acpi ACPI: CONFIG_ACPI_SLEEP=n power off regression in 2.6.23-rc8 (NOT in rc7) 2007-09-25 17:58:52 -04:00
asm-alpha alpha: beautify vmlinux.lds 2007-10-16 09:43:03 -07:00
asm-arm imxfb: fast read flag and nonstandard field configurable 2007-10-16 09:43:21 -07:00
asm-avr32 kprobes: support kretprobe blacklist 2007-10-16 09:43:10 -07:00
asm-blackfin bf54x-lq043fb: framebuffer driver for Blackfin BF54x framebuffer device driver 2007-10-16 09:43:20 -07:00
asm-cris remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-frv include/asm-frv/thread_info.h: kmalloc + memset conversion to kzalloc 2007-10-16 09:43:03 -07:00
asm-generic flush icache before set_pte() on ia64: flush icache at set_pte 2007-10-16 09:42:59 -07:00
asm-h8300 Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-ia64 Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block 2007-10-16 10:09:16 -07:00
asm-m32r m32r: convert to generic sys_ptrace 2007-10-16 09:43:04 -07:00
asm-m68k m68k: Export cachectl.h 2007-10-13 09:41:03 -07:00
asm-m68knommu M68KNOMMU: remove unused config symbol CONFIG_DISKtel 2007-10-16 09:43:03 -07:00
asm-mips Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2007-10-16 10:44:35 -07:00
asm-parisc [PARISC] Add dummy isa_(bus|virt)_to_(virt|bus) inlines 2007-08-27 00:29:22 -04:00
asm-powerpc Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block 2007-10-16 10:09:16 -07:00
asm-ppc [POWERPC] Prevent direct inclusion of <asm/rwsem.h>. 2007-09-22 14:49:21 +10:00
asm-s390 kprobes: support kretprobe blacklist 2007-10-16 09:43:10 -07:00
asm-sh x86: optimize page faults like all other achitectures and kill notifier cruft 2007-10-16 09:42:50 -07:00
asm-sh64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh64-2.6 2007-10-13 09:50:26 -07:00
asm-sparc SPARC: sg chaining support 2007-10-16 11:27:32 +02:00
asm-sparc64 Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block 2007-10-16 10:09:16 -07:00
asm-um uml: style fixes in FP code 2007-10-16 09:43:07 -07:00
asm-v850 Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-x86 Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block 2007-10-16 10:09:16 -07:00
asm-xtensa [patch 1/2] Xtensa: enable arbitary tty speed setting ioctls 2007-08-27 13:54:25 -07:00
crypto [CRYPTO] sha: Add header file for SHA definitions 2007-10-10 16:55:50 -07:00
keys
linux SELinux: Improve read/write performance 2007-10-17 08:59:31 +10:00
math-emu Fix <math-emu/soft-fp.h> tpyo 2007-08-18 17:15:17 -07:00
media v4l: copy_to_user() is not a good method name 2007-10-13 09:58:59 -07:00
mtd
net [IPV6]: Replace sk_buff ** with sk_buff * in input handlers 2007-10-15 12:50:28 -07:00
pcmcia pcmcia: use DMA_MASK_NONE for the default for all pcmcia devices 2007-10-16 09:42:50 -07:00
rdma IB/cm: Modify interface to send MRAs in response to duplicate messages 2007-10-09 19:59:17 -07:00
rxrpc
scsi remove sglist_len 2007-10-16 11:24:44 +02:00
sound [ALSA] version 1.0.15 2007-10-16 16:57:46 +02:00
video pm2fb: hardware cursor support for the Permedia2 2007-10-16 09:43:18 -07:00
xen xen: xen/page.h compile fix 2007-07-26 11:35:16 -07:00
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