fs/splice.c: fix mapping_gfp_mask usage
mapping_gfp_mask() is not supposed to store allocation contex details,
only page location details. So mapping_gfp_mask should be applied to the
pagecache page allocation, wheras normal (kernel mapped) memory should be
used for surrounding allocations such as radix-tree nodes allocated by
add_to_page_cache. Context modifiers should be applied on a per-callsite
basis.
So change splice to follow this convention (which is followed in similar
code patterns in core code).
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fs/splice.c b/fs/splice.c
index ac22b00..740e6b9 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -354,7 +354,7 @@
break;
error = add_to_page_cache_lru(page, mapping, index,
- mapping_gfp_mask(mapping));
+ GFP_KERNEL);
if (unlikely(error)) {
page_cache_release(page);
if (error == -EEXIST)