summaryrefslogtreecommitdiff
path: root/include/linux/buffer_head.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/buffer_head.h')
-rw-r--r--include/linux/buffer_head.h53
1 files changed, 30 insertions, 23 deletions
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 44e9de51eedf..3dc4720e4773 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -198,7 +198,7 @@ void touch_buffer(struct buffer_head *bh);
void folio_set_bh(struct buffer_head *bh, struct folio *folio,
unsigned long offset);
struct buffer_head *folio_alloc_buffers(struct folio *folio, unsigned long size,
- bool retry);
+ gfp_t gfp);
struct buffer_head *alloc_page_buffers(struct page *page, unsigned long size,
bool retry);
void create_empty_buffers(struct page *, unsigned long,
@@ -227,8 +227,8 @@ void __wait_on_buffer(struct buffer_head *);
wait_queue_head_t *bh_waitq_head(struct buffer_head *bh);
struct buffer_head *__find_get_block(struct block_device *bdev, sector_t block,
unsigned size);
-struct buffer_head *__getblk_gfp(struct block_device *bdev, sector_t block,
- unsigned size, gfp_t gfp);
+struct buffer_head *bdev_getblk(struct block_device *bdev, sector_t block,
+ unsigned size, gfp_t gfp);
void __brelse(struct buffer_head *);
void __bforget(struct buffer_head *);
void __breadahead(struct block_device *, sector_t block, unsigned int size);
@@ -338,17 +338,38 @@ sb_breadahead(struct super_block *sb, sector_t block)
__breadahead(sb->s_bdev, block, sb->s_blocksize);
}
-static inline struct buffer_head *
-sb_getblk(struct super_block *sb, sector_t block)
+static inline struct buffer_head *getblk_unmovable(struct block_device *bdev,
+ sector_t block, unsigned size)
{
- return __getblk_gfp(sb->s_bdev, block, sb->s_blocksize, __GFP_MOVABLE);
+ gfp_t gfp;
+
+ gfp = mapping_gfp_constraint(bdev->bd_inode->i_mapping, ~__GFP_FS);
+ gfp |= __GFP_NOFAIL;
+
+ return bdev_getblk(bdev, block, size, gfp);
}
+static inline struct buffer_head *__getblk(struct block_device *bdev,
+ sector_t block, unsigned size)
+{
+ gfp_t gfp;
-static inline struct buffer_head *
-sb_getblk_gfp(struct super_block *sb, sector_t block, gfp_t gfp)
+ gfp = mapping_gfp_constraint(bdev->bd_inode->i_mapping, ~__GFP_FS);
+ gfp |= __GFP_MOVABLE | __GFP_NOFAIL;
+
+ return bdev_getblk(bdev, block, size, gfp);
+}
+
+static inline struct buffer_head *sb_getblk(struct super_block *sb,
+ sector_t block)
{
- return __getblk_gfp(sb->s_bdev, block, sb->s_blocksize, gfp);
+ return __getblk(sb->s_bdev, block, sb->s_blocksize);
+}
+
+static inline struct buffer_head *sb_getblk_gfp(struct super_block *sb,
+ sector_t block, gfp_t gfp)
+{
+ return bdev_getblk(sb->s_bdev, block, sb->s_blocksize, gfp);
}
static inline struct buffer_head *
@@ -385,20 +406,6 @@ static inline void lock_buffer(struct buffer_head *bh)
__lock_buffer(bh);
}
-static inline struct buffer_head *getblk_unmovable(struct block_device *bdev,
- sector_t block,
- unsigned size)
-{
- return __getblk_gfp(bdev, block, size, 0);
-}
-
-static inline struct buffer_head *__getblk(struct block_device *bdev,
- sector_t block,
- unsigned size)
-{
- return __getblk_gfp(bdev, block, size, __GFP_MOVABLE);
-}
-
static inline void bh_readahead(struct buffer_head *bh, blk_opf_t op_flags)
{
if (!buffer_uptodate(bh) && trylock_buffer(bh)) {