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Diffstat (limited to 'include/linux/buffer_head.h')
-rw-r--r--include/linux/buffer_head.h12
1 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 5d9fb0e9415..dd27b1c7227 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -34,6 +34,7 @@ enum bh_state_bits {
BH_Write_EIO, /* I/O error on write */
BH_Ordered, /* ordered write */
BH_Eopnotsupp, /* operation not supported (barrier) */
+ BH_Unwritten, /* Buffer is allocated on disk but not written */
BH_PrivateStart,/* not a state bit, but the first bit available
* for private allocation by other entities
@@ -126,6 +127,7 @@ BUFFER_FNS(Boundary, boundary)
BUFFER_FNS(Write_EIO, write_io_error)
BUFFER_FNS(Ordered, ordered)
BUFFER_FNS(Eopnotsupp, eopnotsupp)
+BUFFER_FNS(Unwritten, unwritten)
#define bh_offset(bh) ((unsigned long)(bh)->b_data & ~PAGE_MASK)
#define touch_buffer(bh) mark_page_accessed(bh->b_page)
@@ -172,12 +174,14 @@ struct super_block *freeze_bdev(struct block_device *);
void thaw_bdev(struct block_device *, struct super_block *);
int fsync_super(struct super_block *);
int fsync_no_super(struct block_device *);
-struct buffer_head *__find_get_block(struct block_device *, sector_t, int);
-struct buffer_head * __getblk(struct block_device *, sector_t, int);
+struct buffer_head *__find_get_block(struct block_device *bdev, sector_t block,
+ unsigned size);
+struct buffer_head *__getblk(struct block_device *bdev, sector_t block,
+ unsigned size);
void __brelse(struct buffer_head *);
void __bforget(struct buffer_head *);
-void __breadahead(struct block_device *, sector_t block, int size);
-struct buffer_head *__bread(struct block_device *, sector_t block, int size);
+void __breadahead(struct block_device *, sector_t block, unsigned int size);
+struct buffer_head *__bread(struct block_device *, sector_t block, unsigned size);
struct buffer_head *alloc_buffer_head(gfp_t gfp_flags);
void free_buffer_head(struct buffer_head * bh);
void FASTCALL(unlock_buffer(struct buffer_head *bh));