btrfs: remove unused gfp mask parameter from release_extent_buffer callchain

It's unused since 0b32f4bbb423f02ac.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

fs/btrfs/disk-io.c

@@ -966,14 +966,8 @@ static int btree_releasepage(struct page *page, gfp_t gfp_flags)
 {
 	if (PageWriteback(page) || PageDirty(page))
 		return 0;
-	/*
-	 * We need to mask out eg. __GFP_HIGHMEM and __GFP_DMA32 as we're doing
-	 * slab allocation from alloc_extent_state down the callchain where
-	 * it'd hit a BUG_ON as those flags are not allowed.
-	 */
-	gfp_flags &= ~GFP_SLAB_BUG_MASK;
 
-	return try_release_extent_buffer(page, gfp_flags);
+	return try_release_extent_buffer(page);
 }
 
 static void btree_invalidatepage(struct page *page, unsigned long offset)

fs/btrfs/extent_io.c

@@ -4450,7 +4450,7 @@ static inline void btrfs_release_extent_buffer_rcu(struct rcu_head *head)
 }
 
 /* Expects to have eb->eb_lock already held */
-static int release_extent_buffer(struct extent_buffer *eb, gfp_t mask)
+static int release_extent_buffer(struct extent_buffer *eb)
 {
 	WARN_ON(atomic_read(&eb->refs) == 0);
 	if (atomic_dec_and_test(&eb->refs)) {
@@ -4508,7 +4508,7 @@ void free_extent_buffer(struct extent_buffer *eb)
 	 * I know this is terrible, but it's temporary until we stop tracking
 	 * the uptodate bits and such for the extent buffers.
 	 */
-	release_extent_buffer(eb, GFP_ATOMIC);
+	release_extent_buffer(eb);
 }
 
 void free_extent_buffer_stale(struct extent_buffer *eb)
@@ -4522,7 +4522,7 @@ void free_extent_buffer_stale(struct extent_buffer *eb)
 	if (atomic_read(&eb->refs) == 2 && !extent_buffer_under_io(eb) &&
 	    test_and_clear_bit(EXTENT_BUFFER_TREE_REF, &eb->bflags))
 		atomic_dec(&eb->refs);
-	release_extent_buffer(eb, GFP_NOFS);
+	release_extent_buffer(eb);
 }
 
 void clear_extent_buffer_dirty(struct extent_buffer *eb)
@@ -5042,7 +5042,7 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
 	}
 }
 
-int try_release_extent_buffer(struct page *page, gfp_t mask)
+int try_release_extent_buffer(struct page *page)
 {
 	struct extent_buffer *eb;
 
@@ -5072,9 +5072,6 @@ int try_release_extent_buffer(struct page *page, gfp_t mask)
 	}
 	spin_unlock(&page->mapping->private_lock);
 
-	if ((mask & GFP_NOFS) == GFP_NOFS)
-		mask = GFP_NOFS;
-
 	/*
 	 * If tree ref isn't set then we know the ref on this eb is a real ref,
 	 * so just return, this page will likely be freed soon anyway.
@@ -5084,5 +5081,5 @@ int try_release_extent_buffer(struct page *page, gfp_t mask)
 		return 0;
 	}
 
-	return release_extent_buffer(eb, mask);
+	return release_extent_buffer(eb);
 }

fs/btrfs/extent_io.h

@@ -189,7 +189,7 @@ void extent_io_tree_init(struct extent_io_tree *tree,
 int try_release_extent_mapping(struct extent_map_tree *map,
 			       struct extent_io_tree *tree, struct page *page,
 			       gfp_t mask);
-int try_release_extent_buffer(struct page *page, gfp_t mask);
+int try_release_extent_buffer(struct page *page);
 int lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
 int lock_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
 		     int bits, struct extent_state **cached);