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
[PATCH] include/asm-cris/: "extern inline" -> "static inline"
2006-12-07 08:39:45 -08:00
[NET]: Cris checksum annotations and cleanups.
2006-12-02 21:23:02 -08:00
[PATCH] mutex subsystem, add atomic_xchg() to all arches
2006-01-09 15:59:17 -08:00
[PATCH] bitops: cris: use generic bitops
2006-03-26 08:57:12 -08:00
Clean up exported headers on CRIS
2006-09-21 09:33:55 +01:00
[PATCH] Optimize D-cache alias handling on fork
2006-12-13 09:27:08 -08:00
[NET]: Cris checksum annotations and cleanups.
2006-12-02 21:23:02 -08:00
[PATCH] cris: "extern inline" -> "static inline"
2005-11-07 07:53:30 -08:00
[PATCH] cris: "extern inline" -> "static inline"
2005-11-07 07:53:30 -08:00
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
[PATCH] Pass struct dev pointer to dma_cache_sync()
2006-12-07 08:39:41 -08:00
Clean up exported headers on CRIS
2006-09-21 09:33:55 +01:00
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
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[PATCH] consolidate asm/futex.h
2006-01-08 20:13:39 -08:00
[PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend()
2006-06-29 10:26:23 -07:00
[PATCH] kill eth_io_copy_and_sum()
2007-02-09 09:14:07 -08:00
[PATCH] Generic ioctl.h
2006-01-10 08:01:34 -08:00
etrax: enable arbitary speed setting on tty ports
2007-07-16 09:05:38 -07:00
[PATCH] genirq: cleanup: turn ARCH_HAS_IRQ_PER_CPU into CONFIG_IRQ_PER_CPU
2006-06-29 10:26:23 -07:00
Clean up exported headers on CRIS
2006-09-21 09:33:55 +01:00
move die notifier handling to common code
2007-05-08 11:15:04 -07:00
[PATCH] add asm-generic/mman.h
2006-02-15 15:32:22 -08:00
[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction
2007-05-02 19:27:14 +02:00
[PATCH] mutex subsystem, add default include/asm-*/mutex.h files
2006-01-09 15:59:19 -08:00
Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated
2007-07-17 10:22:59 -07:00
PCI: remove pci_dac_dma_... APIs
2007-07-11 16:02:11 -07:00
[PATCH] cris: "extern inline" -> "static inline"
2005-11-07 07:53:30 -08:00
page table handling cleanup
2007-07-16 09:05:36 -07:00
Consolidate asm/poll.h
2007-05-11 08:29:34 -07:00
Clean up exported headers on CRIS
2006-09-21 09:33:55 +01:00
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
[PATCH] CRIS: turn local_save_flags() + local_irq_disable() into local_irq_save() in headers
2007-02-11 10:51:20 -08:00
[PATCH] cris: "extern inline" -> "static inline"
2005-11-07 07:53:30 -08:00
[PATCH] irq-flags: CRIS: Use the new IRQF_ constants
2006-07-02 13:58:46 -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] CRIS: turn local_save_flags() + local_irq_disable() into local_irq_save() in headers
2007-02-11 10:51:20 -08:00
etrax: enable arbitary speed setting on tty ports
2007-07-16 09:05:38 -07:00
etrax: enable arbitary speed setting on tty ports
2007-07-16 09:05:38 -07:00
[PATCH] death of get_thread_info/put_thread_info
2006-01-12 09:08:59 -08:00
[PATCH] cris: "extern inline" -> "static inline"
2005-11-07 07:53:30 -08:00
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
[PATCH] cris: "extern inline" -> "static inline"
2005-11-07 07:53:30 -08:00
[PATCH] remove remaining errno and __KERNEL_SYSCALLS__ references
2006-10-02 07:57:23 -07:00
769848c038