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
[IA64] add sn_register_pmi_handler oemcall
2007-07-11 11:34:21 -07:00
[IA64] update HP CSR space discovery via ACPI
2006-04-06 14:42:38 -07:00
[IA64] Cleanup acpi header to reuse the generic _PDC defines
2007-05-24 10:15:06 -07:00
[IA64] remove per-cpu ia64_phys_stacked_size_p8
2007-02-06 15:04:18 -08:00
atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency
2007-05-08 11:15:20 -07:00
[PATCH] auxiliary vector cleanups
2005-09-07 16:57:21 -07:00
[IA64] remove asm-ia64/bitops.h self-inclusion
2006-05-05 11:37:15 -07:00
[IA64] enable trap code on slot 1
2006-12-12 12:00:55 -08:00
[PATCH] remove gcc-2 checks
2006-01-08 20:14:02 -08:00
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
[PATCH] fix prototype of csum_ipv6_magic() (ia64)
2007-01-23 11:09:49 -08:00
Introduce compat_u64 and compat_s64 types
2007-07-16 09:05:48 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
ACPI: Change ACPI to use dev_archdata instead of firmware_data
2006-12-01 14:52:01 -08:00
[PATCH] ia64: fix noncoherent DMA API so devres builds
2007-02-14 08:09:51 -08:00
[IA64] swiotlb bug fixes
2007-02-05 18:46:40 -08:00
[PATCH] ia64: use i386 dmi_scan.c
2006-03-26 08:56:54 -08:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[PATCH] Add emergency_restart()
2005-07-26 14:35:41 -07:00
[IA64] remove bogus prototype ia64_esi_init()
2007-02-05 14:14:29 -08:00
[PATCH] Clean up struct flock definitions
2005-09-07 16:57:38 -07:00
[PATCH] mm: pagefault_{disable,enable}()
2006-12-07 08:39:21 -08:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[IA64] Optional method to purge the TLB on SN systems
2007-05-08 14:50:43 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[IA64] use icc defined constant
2006-02-07 08:49:27 -08:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[IA64] make ioremap avoid unsupported attributes
2007-03-30 09:37:41 -07:00
[PATCH] Generic ioctl.h
2006-01-10 08:01:34 -08:00
[IA64] Fix some section mismatch errors
2007-05-07 13:17:00 -07:00
[IA64] SN: validate smp_affinity mask on intr redirect
2007-05-11 09:35:38 -07:00
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
2006-10-05 15:10:12 +01:00
[PATCH] cleanup asm/setup.h userspace visibility
2006-12-07 08:39:46 -08:00
[IA64] optimize pagefaults a little
2007-05-16 09:00:51 -07:00
kdump/kexec: calculate note size at compile time
2007-05-08 11:15:07 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[IA64] optimize pagefaults a little
2007-05-16 09:00:51 -07:00
[IA64] relax per-cpu TLB requirement to DTC
2007-02-06 15:04:48 -08:00
ATA convert GSI to irq on ia64
2007-02-15 18:04:53 -05:00
[PATCH] abstract type/size specification for assembly
2006-03-24 07:33:25 -08:00
local_t: ia64 extension
2007-05-08 11:15:20 -07:00
[PATCH] ia64: platform_kernel_launch_event is noop on generic kernel
2007-03-18 11:35:07 -07:00
[IA64] cleanup dig_irq_init
2006-03-24 13:12:46 -08:00
[IA64] more robust zx1/sx1000 machvec support
2005-09-14 16:22:11 -07:00
[IA64] more robust zx1/sx1000 machvec support
2005-09-14 16:22:11 -07:00
[IA64] IA64 Kexec/kdump
2006-12-07 09:51:35 -08:00
[IA64] Support multiple CPUs going through OS_MCA
2007-07-11 11:50:11 -07:00
[IA64] Make gp value point to Region 5 in mca handler
2006-09-26 14:13:03 -07:00
[IA64] min_low_pfn and max_low_pfn calculation fix
2007-03-20 13:41:57 -07:00
[PATCH] IA64,sparc: local DoS with corrupted ELFs
2006-09-08 08:40:46 -07:00
[IA64] Fix race in mm-context wrap-around logic.
2005-08-12 15:05:21 -07:00
[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction
2007-05-02 19:27:14 +02:00
[PATCH] V5 ia64 SPARSEMEM - conditional changes for SPARSEMEM
2005-10-04 13:21:13 -07:00
[PATCH] Move compiler check for modules to ia64 only
2006-09-26 10:52:37 +02:00
[IA64] fix bug in ia64 __mutex_fastpath_trylock
2006-04-07 22:39:49 -07:00
[PATCH] pgdat allocation and update for ia64 of memory hotplug: update pgdat address array
2006-06-27 17:32:37 -07:00
[PATCH] fix "cpu to node relationship fixup: map cpu to node"
2006-09-27 08:26:08 -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
Pull error-inject into release branch
2007-04-30 13:55:43 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[IA64] remove per-cpu ia64_phys_stacked_size_p8
2007-02-06 15:04:18 -08:00
[IA64] Un-break ia64 build
2007-07-12 16:04:39 -07:00
[PATCH] lockdep: add per_cpu_offset()
2006-07-03 15:27:00 -07:00
[IA64] Quicklist support for IA64
2007-05-11 09:40:00 -07:00
mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty
2007-07-17 10:22:59 -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
Pull percpu-dtc into release branch
2007-04-30 13:56:00 -07:00
[PATCH] Add regs_return_value() helper
2006-10-02 07:57:16 -07:00
[IA64] Remove stack hard limit on ia64
2007-03-06 14:48:19 -08:00
[PATCH] lockdep: remove RWSEM_DEBUG remnants
2006-07-03 15:27:01 -07:00
[IA64] whitespace fixes for include/asm-ia64/sal.h
2007-03-08 09:58:13 -08:00
PCI: scatterlist.h needs types.h
2007-05-02 19:02:34 -07:00
[IA64] remove per-cpu ia64_phys_stacked_size_p8
2007-02-06 15:04:18 -08:00
[IA64] Fix bug in ia64 specific down() function
2006-01-17 14:04:00 -08:00
[PATCH] ia64: 2048-byte command line
2007-02-12 09:48:39 -08:00
[PATCH] irq-flags: IA64: Use the new IRQF_ constants
2006-07-02 13:58:47 -07:00
Always ask the hardware to obtain hardware processor id - ia64
2007-05-09 12:30:49 -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] V5 ia64 SPARSEMEM - conditional changes for SPARSEMEM
2005-10-04 13:21:13 -07:00
[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks
2006-10-01 00:39:21 -07:00
[PATCH] spinlock consolidation
2005-09-10 10:06:21 -07:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[IA64] sparse cleanups
2006-08-02 16:03:44 -07:00
lots-of-architectures: enable arbitary speed tty support
2007-07-10 17:51:13 -07:00
[PATCH] consolidate line discipline number definitions
2007-02-11 10:51:26 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
2007-05-09 13:38:45 -07:00
[IA64] ia64: simplify and fix udelay()
2006-02-15 13:37:04 -08:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[IA64] Optional method to purge the TLB on SN systems
2007-05-08 14:50:43 -07:00
[PATCH] sched: remove SMT nice
2007-03-05 07:57:51 -08:00
[PATCH] sab: consolidate kmem_bufctl_t
2005-09-05 00:05:48 -07:00
[IA64] don't double >> PAGE_SHIFT pointer for /dev/kmem access
2006-10-26 14:57:06 -07:00
[IA64] Fix bogus messages about system calls not implemented.
2007-05-18 14:15:58 -07:00
[IA64] Remove sparse warning from unwind code
2007-03-08 10:28:48 -08:00
[PATCH] Fix 'make headers_check' on ia64
2006-09-16 12:54:32 -07:00
[PATCH] vgacon: make VGA_MAP_MEM take size, remove extra use
2006-06-22 15:05:58 -07:00
769848c038