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authorJeff Dike <jdike@addtoit.com>2006-04-10 22:53:27 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-11 06:18:35 -0700
commit7b04d7170e9af805cac19f97b28fff10db897893 (patch)
treef4b0de67af631c1a1099bcd35621ae7fff38af67
parenta5d2f46a97cf8e23f5da17dec50a972642ac409f (diff)
downloadop-kernel-dev-7b04d7170e9af805cac19f97b28fff10db897893.zip
op-kernel-dev-7b04d7170e9af805cac19f97b28fff10db897893.tar.gz
[PATCH] Add GFP_NOWAIT
Introduce GFP_NOWAIT, as an alias for GFP_ATOMIC & ~__GFP_HIGH. This also changes XFS, which is the only in-tree user of this idiom that I could find. The XFS piece is compile-tested only. Signed-off-by: Jeff Dike <jdike@addtoit.com> Acked-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c2
-rw-r--r--include/linux/gfp.h2
2 files changed, 3 insertions, 1 deletions
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 9fb0312..26fed07 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -182,7 +182,7 @@ free_address(
{
a_list_t *aentry;
- aentry = kmalloc(sizeof(a_list_t), GFP_ATOMIC & ~__GFP_HIGH);
+ aentry = kmalloc(sizeof(a_list_t), GFP_NOWAIT);
if (likely(aentry)) {
spin_lock(&as_lock);
aentry->next = as_free_head;
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 7851e6b..3ac4529 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -57,6 +57,8 @@ struct vm_area_struct;
__GFP_NOFAIL|__GFP_NORETRY|__GFP_NO_GROW|__GFP_COMP| \
__GFP_NOMEMALLOC|__GFP_HARDWALL)
+/* This equals 0, but use constants in case they ever change */
+#define GFP_NOWAIT (GFP_ATOMIC & ~__GFP_HIGH)
/* GFP_ATOMIC means both !wait (__GFP_WAIT not set) and use emergency pool */
#define GFP_ATOMIC (__GFP_HIGH)
#define GFP_NOIO (__GFP_WAIT)
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