Messages in this thread Patch in this message | | | Subject | [PATCH 1/2] Add GFP_NOWAIT | Date | Thu, 06 Apr 2006 12:55:22 -0400 | From | Jeff Dike <> |
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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>
Index: linux-2.6.16/fs/xfs/linux-2.6/xfs_buf.c =================================================================== --- linux-2.6.16.orig/fs/xfs/linux-2.6/xfs_buf.c 2006-04-06 12:16:14.000000000 -0400 +++ linux-2.6.16/fs/xfs/linux-2.6/xfs_buf.c 2006-04-06 12:16:54.000000000 -0400 @@ -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; Index: linux-2.6.16/include/linux/gfp.h =================================================================== --- linux-2.6.16.orig/include/linux/gfp.h 2006-03-21 11:50:12.000000000 -0500 +++ linux-2.6.16/include/linux/gfp.h 2006-04-06 12:15:18.000000000 -0400 @@ -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) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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