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Lee Schermerhorn 89e004ea55 SHM_LOCKED pages are unevictable ... Shmem segments locked into memory via shmctl(SHM_LOCKED) should not be kept on the normal LRU, since scanning them is a waste of time and might throw off kswapd's balancing algorithms. Place them on the unevictable LRU list instead. Use the AS_UNEVICTABLE flag to mark address_space of SHM_LOCKed shared memory regions as unevictable. Then these pages will be culled off the normal LRU lists during vmscan. Add new wrapper function to clear the mapping's unevictable state when/if shared memory segment is munlocked. Add 'scan_mapping_unevictable_page()' to mm/vmscan.c to scan all pages in the shmem segment's mapping [struct address_space] for evictability now that they're no longer locked. If so, move them to the appropriate zone lru list. Changes depend on [CONFIG_]UNEVICTABLE_LRU. [kosaki.motohiro@jp.fujitsu.com: revert shm change] Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Kosaki Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		16 years ago
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acpi	include: replace __FUNCTION__ with __func__	17 years ago
asm-arm	…
asm-cris	[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY	17 years ago
asm-frv	FRV: Switch unaligned access to the packed-struct implementation	17 years ago
asm-generic	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6	17 years ago
asm-h8300	h8300: update timer handler - new files	17 years ago
asm-m32r	[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY	17 years ago
asm-m68k	[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY	17 years ago
asm-mn10300	[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY	17 years ago
asm-parisc	[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY	17 years ago
asm-um	[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY	17 years ago
asm-x86	Merge branch 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm	17 years ago
asm-xtensa	[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY	17 years ago
crypto	…
drm	radeon: fix PCI bus mastering support enables.	17 years ago
keys	…
linux	SHM_LOCKED pages are unevictable	16 years ago
math-emu	…
media	V4L/DVB (9276): videobuf-dvb: two functions are now static	17 years ago
mtd	…
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	17 years ago
pcmcia	…
rdma	…
rxrpc	…
scsi	…
sound	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6	17 years ago
video	fbdev: allow more chip revisions in Epson s1d13... video driver	17 years ago
xen	…
Kbuild	…