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9d0243bca3
linux/include
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Andrew Morton 9d0243bca3 [PATCH] drop-pagecache 
Add /proc/sys/vm/drop_caches.  When written to, this will cause the kernel to
discard as much pagecache and/or reclaimable slab objects as it can.  THis
operation requires root permissions.

It won't drop dirty data, so the user should run `sync' first.

Caveats:

a) Holds inode_lock for exorbitant amounts of time.

b) Needs to be taught about NUMA nodes: propagate these all the way through
   so the discarding can be controlled on a per-node basis.

This is a debugging feature: useful for getting consistent results between
filesystem benchmarks.  We could possibly put it under a config option, but
it's less than 300 bytes.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:12:40 -08:00
..
acpi [ACPI] increase owner_id limit to 64 from 32 2005-12-21 04:52:16 -05:00
asm-alpha [PATCH] Alpha: convert to generic irq framework (alpha part) 2006-01-06 08:33:40 -08:00
asm-arm [ARM] byteorder.h needs linux/compiler.h 2006-01-07 16:55:50 +00:00
asm-arm26 [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-cris [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-frv [PATCH] frv: improve signal handling 2006-01-06 08:33:33 -08:00
asm-generic [PATCH] asm-generic/atomic.h needs types.h 2006-01-08 20:12:38 -08:00
asm-h8300 [PATCH] m68knommu: remove enable_irq_nosync() 2006-01-06 08:33:44 -08:00
asm-i386 [PATCH] mpspec: remove unneeded packed attribute 2006-01-06 08:33:39 -08:00
asm-ia64 [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-m32r [PATCH] m32r: Remove unnecessary icu_data_t definitions 2006-01-06 08:33:44 -08:00
asm-m68k [PATCH] m68knommu: remove enable_irq_nosync() 2006-01-06 08:33:44 -08:00
asm-m68knommu [PATCH] m68knommu: remove enable_irq_nosync() 2006-01-06 08:33:44 -08:00
asm-mips [PATCH] mips: remove include/asm-mips/riscos-syscall.h 2006-01-06 08:33:33 -08:00
asm-parisc [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-powerpc [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-ppc [PATCH] ppc32: Allows compilation of a MPC52xx kernel without PCI 2006-01-06 08:33:31 -08:00
asm-s390 [PATCH] s390: cleanup Kconfig 2006-01-06 08:33:53 -08:00
asm-sh [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-sh64 [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-sparc [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-sparc64 [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-um [PATCH] uml: eliminate anonymous union and clean up symlink lossage 2005-11-22 09:13:41 -08:00
asm-v850 [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-x86_64 [PATCH] cpu hotplug/x86_64: disable interrupt in play_dead 2006-01-06 08:33:39 -08:00
asm-xtensa [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
keys [PATCH] Keys: Remove key duplication 2006-01-06 08:33:29 -08:00
linux [PATCH] drop-pagecache 2006-01-08 20:12:40 -08:00
math-emu
media Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6 2006-01-06 15:25:08 -08:00
mtd [MTD] user-abi: Clean up trailing white spaces 2005-11-07 14:43:11 +01:00
net [IPV4]: make ip_fragment() static 2006-01-07 13:23:39 -08:00
pcmcia [PATCH] pcmcia: unify attach, EVENT_CARD_INSERTION handlers into one probe callback 2006-01-06 00:03:24 +01:00
rdma [IB] uverbs: have kernel return QP capabilities 2005-11-10 10:22:50 -08:00
rxrpc [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
scsi Merge branch 'post-2.6.15' of git://brick.kernel.dk/data/git/linux-2.6-block 2006-01-06 09:01:25 -08:00
sound [ALSA] Revert the nested-device patch 2006-01-04 10:13:48 +01:00
video