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| author | Gioh Kim <gioh.kim@lge.com> | 2014-09-04 22:04:42 -0400 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2015-08-12 16:33:18 +0200 |
| commit | 74e9374ed552160261e29647bf6e1907cdd27523 (patch) | |
| tree | 580f3fa5e9b7698f2133c0a5de4a19a2a940a7bd /include/acpi | |
| parent | 2cae492e593bbd38d39b7883eac8754beb8a1955 (diff) | |
| download | kernel_samsung_smdk4412-74e9374ed552160261e29647bf6e1907cdd27523.zip kernel_samsung_smdk4412-74e9374ed552160261e29647bf6e1907cdd27523.tar.gz kernel_samsung_smdk4412-74e9374ed552160261e29647bf6e1907cdd27523.tar.bz2 | |
fs/buffer.c: support buffer cache allocations with gfp modifiers
commit 3b5e6454aaf6b4439b19400d8365e2ec2d24e411 upstream.
A buffer cache is allocated from movable area because it is referred
for a while and released soon. But some filesystems are taking buffer
cache for a long time and it can disturb page migration.
New APIs are introduced to allocate buffer cache with user specific
flag. *_gfp APIs are for user want to set page allocation flag for
page cache allocation. And *_unmovable APIs are for the user wants to
allocate page cache from non-movable area.
Signed-off-by: Gioh Kim <gioh.kim@lge.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
[bwh: Prerequisite for "bufferhead: Add _gfp version for sb_getblk()".
Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include/acpi')
0 files changed, 0 insertions, 0 deletions