Mel Gorman
769848c038
Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated ...
It is often known at allocation time whether a page may be migrated or not.
This patch adds a flag called __GFP_MOVABLE and a new mask called
GFP_HIGH_MOVABLE. Allocations using the __GFP_MOVABLE can be either migrated
using the page migration mechanism or reclaimed by syncing with backing
storage and discarding.
An API function very similar to alloc_zeroed_user_highpage() is added for
__GFP_MOVABLE allocations called alloc_zeroed_user_highpage_movable(). The
flags used by alloc_zeroed_user_highpage() are not changed because it would
change the semantics of an existing API. After this patch is applied there
are no in-kernel users of alloc_zeroed_user_highpage() so it probably should
be marked deprecated if this patch is merged.
Note that this patch includes a minor cleanup to the use of __GFP_ZERO in
shmem.c to keep all flag modifications to inode->mapping in the
shmem_dir_alloc() helper function. This clean-up suggestion is courtesy of
Hugh Dickens.
Additional credit goes to Christoph Lameter and Linus Torvalds for shaping the
concept. Credit to Hugh Dickens for catching issues with shmem swap vector
and ramfs allocations.
[akpm@linux-foundation.org: build fix]
[hugh@veritas.com: __GFP_ZERO cleanup]
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:22:59 -07:00
atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency
2007-05-08 11:15:20 -07:00
[PATCH] remove set_wmb - arch removal
2006-07-14 21:56:14 -07:00
alpha: cleanup in bitops.h
2007-05-30 10:07:54 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[PATCH] Optimize D-cache alias handling on fork
2006-12-13 09:27:08 -08:00
[NET]: Alpha checksum annotations and cleanups.
2006-12-02 21:23:01 -08:00
alpha: build fixes - force architecture
2007-04-17 16:36:27 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
alpha: fixes for specific machine types
2007-04-17 16:36:27 -07:00
ALPHA: correct low-level I/O routines for sable-lynx
2007-06-01 08:18:29 -07:00
ALPHA: support graphics on non-zero PCI domains
2007-06-01 08:18:29 -07:00
ALPHA: support graphics on non-zero PCI domains
2007-06-01 08:18:29 -07:00
ALPHA: misc fixes
2007-06-01 08:18:29 -07:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
[PATCH] dma-mapping.h stubs fix
2007-01-30 08:39:21 -08:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[PATCH] irq-flags: ALPHA: Use the new IRQF_ constants
2006-07-02 13:58:46 -07:00
[PATCH] bitops: alpha: use config options instead of __alpha_fix__ and __alpha_cix__
2006-03-26 08:57:09 -08:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend()
2006-06-29 10:26:23 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
fix alpha ISA support
2007-07-16 09:05:37 -07:00
[PATCH] adjust handle_IRR_event() return type
2006-06-23 07:43:08 -07:00
[PATCH] minimal alpha pt_regs fixes
2006-10-07 10:51:14 -07:00
[HEADERS] One line per header in Kbuild files to reduce conflicts
2006-09-19 12:43:58 +01:00
move die notifier handling to common code
2007-05-08 11:15:04 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
local_t: alpha extension
2007-05-08 11:15:20 -07:00
[PATCH] alpha pt_regs cleanups: machine_check()
2006-10-08 12:32:36 -07:00
[PATCH] Remove final references to deprecated "MAP_ANON" page protection flag
2007-02-11 10:51:17 -08:00
alpha: fix hard_smp_processor_id compile error
2007-05-15 08:54:00 -07:00
[PATCH] Standardize pxx_page macros
2006-09-26 08:48:51 -07:00
Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated
2007-07-17 10:22:59 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
PCI: remove pci_dac_dma_... APIs
2007-07-11 16:02:11 -07:00
[PATCH] x86-64: Account for module percpu space separately from kernel percpu
2007-05-02 19:27:11 +02:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
page table handling cleanup
2007-07-16 09:05:36 -07:00
Consolidate asm/poll.h
2007-05-11 08:29:34 -07:00
[PATCH] FD_ZERO build fix
2007-01-11 18:18:22 -08:00
[PATCH] alpha: task_pt_regs()
2006-01-12 09:08:50 -08:00
[PATCH] alpha: task_pt_regs()
2006-01-12 09:08:50 -08:00
[PATCH] lockdep: remove RWSEM_DEBUG remnants
2006-07-03 15:27:01 -07:00
PCI: scatterlist.h needs types.h
2007-05-02 19:02:34 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[PATCH] irq-flags: ALPHA: Use the new IRQF_ constants
2006-07-02 13:58:46 -07:00
Remove hardcoding of hard_smp_processor_id on UP systems
2007-05-09 12:30:48 -07:00
[NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support
2007-04-25 22:24:21 -07:00
[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution
2007-04-25 22:24:04 -07:00
[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks
2006-10-01 00:39:21 -07:00
[STRING]: Move strcasecmp/strncasecmp to lib/string.c
2007-04-26 01:54:39 -07:00
Remove tas()
2007-05-08 11:15:20 -07:00
[PATCH] tty: preparatory structures for termios revamp
2006-12-08 08:28:56 -08:00
[PATCH] consolidate line discipline number definitions
2007-02-11 10:51:26 -08:00
alpha: support new syscalls
2007-05-30 10:07:54 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[PATCH] more for_each_cpu() conversions
2006-03-23 07:38:17 -08:00
alpha: support new syscalls
2007-05-30 10:07:54 -07:00
ALPHA: support graphics on non-zero PCI domains
2007-06-01 08:18:29 -07:00
769848c038