The patch titled
Add __GFP_MOVABLE for callers to flag allocations from low memory that may be migrated
has been added to the -mm tree. Its filename is
add-__gfp_movable-for-callers-to-flag-allocations-from-low-memory-that-may-be-migrated.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Add __GFP_MOVABLE for callers to flag allocations from low memory that may be migrated
From: Mel Gorman <mel@xxxxxxxxx>
This patch flags the allocations from low memory that may be migrated.
A GFP_USER_MOVABLE similar to GFP_HIGH_MOVABLE is not provided in this patch
because it would only be used once. This patch uses __GFP_MOVABLE twice for a
GFP_USER and a GFP_NOIO allocation. There is little point defining
GFP_*_MOVABLE for one use unless people feel it would help self-documentation.
Signed-off-by: Mel Gorman <mel@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/block_dev.c | 2 +-
fs/buffer.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff -puN fs/block_dev.c~add-__gfp_movable-for-callers-to-flag-allocations-from-low-memory-that-may-be-migrated fs/block_dev.c
--- a/fs/block_dev.c~add-__gfp_movable-for-callers-to-flag-allocations-from-low-memory-that-may-be-migrated
+++ a/fs/block_dev.c
@@ -574,7 +574,7 @@ struct block_device *bdget(dev_t dev)
inode->i_rdev = dev;
inode->i_bdev = bdev;
inode->i_data.a_ops = &def_blk_aops;
- mapping_set_gfp_mask(&inode->i_data, GFP_USER);
+ mapping_set_gfp_mask(&inode->i_data, GFP_USER|__GFP_MOVABLE);
inode->i_data.backing_dev_info = &default_backing_dev_info;
spin_lock(&bdev_lock);
list_add(&bdev->bd_list, &all_bdevs);
diff -puN fs/buffer.c~add-__gfp_movable-for-callers-to-flag-allocations-from-low-memory-that-may-be-migrated fs/buffer.c
--- a/fs/buffer.c~add-__gfp_movable-for-callers-to-flag-allocations-from-low-memory-that-may-be-migrated
+++ a/fs/buffer.c
@@ -2633,7 +2633,7 @@ int submit_bh(int rw, struct buffer_head
* from here on down, it's all bio -- do the initial mapping,
* submit_bio -> generic_make_request may further map this bio around
*/
- bio = bio_alloc(GFP_NOIO, 1);
+ bio = bio_alloc(GFP_NOIO|__GFP_MOVABLE, 1);
bio->bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_bdev = bh->b_bdev;
_
Patches currently in -mm which might be from mel@xxxxxxxxx are
add-a-bitmap-that-is-used-to-track-flags-affecting-a-block-of-pages.patch
add-__gfp_movable-for-callers-to-flag-allocations-from-high-memory-that-may-be-migrated.patch
add-__gfp_movable-for-callers-to-flag-allocations-from-low-memory-that-may-be-migrated.patch
split-the-free-lists-for-movable-and-unmovable-allocations.patch
choose-pages-from-the-per-cpu-list-based-on-migration-type.patch
add-a-configure-option-to-group-pages-by-mobility.patch
drain-per-cpu-lists-when-high-order-allocations-fail.patch
move-free-pages-between-lists-on-steal.patch
group-short-lived-and-reclaimable-kernel-allocations.patch
group-high-order-atomic-allocations.patch
bias-the-placement-of-kernel-pages-at-lower-pfns.patch
be-more-agressive-about-stealing-when-migrate_reclaimable-allocations-fallback.patch
create-the-zone_movable-zone.patch
allow-huge-page-allocations-to-use-gfp_high_movable.patch
x86-specify-amount-of-kernel-memory-at-boot-time.patch
ppc-and-powerpc-specify-amount-of-kernel-memory-at-boot-time.patch
x86_64-specify-amount-of-kernel-memory-at-boot-time.patch
ia64-specify-amount-of-kernel-memory-at-boot-time.patch
add-documentation-for-additional-boot-parameter-and-sysctl.patch
ext2-reservations.patch
add-__gfp_movable-for-callers-to-flag-allocations-from-high-memory-that-may-be-migrated-swap-prefetch.patch
add-debugging-aid-for-memory-initialisation-problems.patch
add-debugging-aid-for-memory-initialisation-problems-fix.patch
-
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