52 static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh,
55 #define BH_ENTRY(list) list_entry((list), struct buffer_head, b_assoc_buffers)
57 inline void touch_buffer(struct buffer_head *bh)  in touch_buffer()
64 void __lock_buffer(struct buffer_head *bh)  in __lock_buffer()
70 void unlock_buffer(struct buffer_head *bh)  in unlock_buffer()
86 	struct buffer_head *head, *bh;  in buffer_check_dirty_writeback()
117 void __wait_on_buffer(struct buffer_head * bh)  in __wait_on_buffer()
131 static void buffer_io_error(struct buffer_head *bh, char *msg)  in buffer_io_error()
147 static void __end_buffer_read_notouch(struct buffer_head *bh, int uptodate)  in __end_buffer_read_notouch()
162 void end_buffer_read_sync(struct buffer_head *bh, int uptodate)  in end_buffer_read_sync()
169 void end_buffer_write_sync(struct buffer_head *bh, int uptodate)  in end_buffer_write_sync()
193 static struct buffer_head *
198 	struct buffer_head *ret = NULL;  in __find_get_block_slow()
200 	struct buffer_head *bh;  in __find_get_block_slow()
201 	struct buffer_head *head;  in __find_get_block_slow()
253 static void end_buffer_async_read(struct buffer_head *bh, int uptodate)  in end_buffer_async_read()
256 	struct buffer_head *first;  in end_buffer_async_read()
257 	struct buffer_head *tmp;  in end_buffer_async_read()
314 void end_buffer_async_write(struct buffer_head *bh, int uptodate)  in end_buffer_async_write()
317 	struct buffer_head *first;  in end_buffer_async_write()
318 	struct buffer_head *tmp;  in end_buffer_async_write()
380 static void mark_buffer_async_read(struct buffer_head *bh)  in mark_buffer_async_read()
386 static void mark_buffer_async_write_endio(struct buffer_head *bh,  in mark_buffer_async_write_endio()
393 void mark_buffer_async_write(struct buffer_head *bh)  in mark_buffer_async_write()
452 static void __remove_assoc_queue(struct buffer_head *bh)  in __remove_assoc_queue()
476 	struct buffer_head *bh;  in osync_buffers_list()
537 	struct buffer_head *bh = __find_get_block(bdev, bblock + 1, blocksize);  in write_boundary_block()
545 void mark_buffer_dirty_inode(struct buffer_head *bh, struct inode *inode)  in mark_buffer_dirty_inode()
626 		struct buffer_head *head = page_buffers(page);  in __set_page_dirty_buffers()
627 		struct buffer_head *bh = head;  in __set_page_dirty_buffers()
675 	struct buffer_head *bh;  in fsync_buffers_list()
793 			struct buffer_head *bh = BH_ENTRY(list->next);  in remove_inode_buffers()
814 struct buffer_head *alloc_page_buffers(struct page *page, unsigned long size,  in alloc_page_buffers()
817 	struct buffer_head *bh, *head;  in alloc_page_buffers()
865 link_dev_buffers(struct page *page, struct buffer_head *head)  in link_dev_buffers()
867 	struct buffer_head *bh, *tail;  in link_dev_buffers()
897 	struct buffer_head *head = page_buffers(page);  in init_page_buffers()
898 	struct buffer_head *bh = head;  in init_page_buffers()
934 	struct buffer_head *bh;  in grow_dev_page()
1021 static struct buffer_head *
1038 		struct buffer_head *bh;  in __getblk_slow()
1086 void mark_buffer_dirty(struct buffer_head *bh)  in mark_buffer_dirty()
1121 void mark_buffer_write_io_error(struct buffer_head *bh)  in mark_buffer_write_io_error()
1139 void __brelse(struct buffer_head * buf)  in __brelse()
1153 void __bforget(struct buffer_head *bh)  in __bforget()
1168 static struct buffer_head *__bread_slow(struct buffer_head *bh)  in __bread_slow()
1203 	struct buffer_head *bhs[BH_LRU_SIZE];
1228 static void bh_lru_install(struct buffer_head *bh)  in bh_lru_install()
1230 	struct buffer_head *evictee = bh;  in bh_lru_install()
1254 static struct buffer_head *
1257 	struct buffer_head *ret = NULL;  in lookup_bh_lru()
1263 		struct buffer_head *bh = __this_cpu_read(bh_lrus.bhs[i]);  in lookup_bh_lru()
1289 struct buffer_head *
1292 	struct buffer_head *bh = lookup_bh_lru(bdev, block, size);  in __find_get_block()
1314 struct buffer_head *
1318 	struct buffer_head *bh = __find_get_block(bdev, block, size);  in __getblk_gfp()
1332 	struct buffer_head *bh = __getblk(bdev, block, size);  in __breadahead()
1352 struct buffer_head *
1356 	struct buffer_head *bh = __getblk_gfp(bdev, block, size, gfp);  in __bread_gfp()
1400 void set_bh_page(struct buffer_head *bh,  in set_bh_page()
1424 static void discard_buffer(struct buffer_head * bh)  in discard_buffer()
1461 	struct buffer_head *head, *bh, *next;  in block_invalidatepage()
1516 	struct buffer_head *bh, *head, *tail;  in create_empty_buffers()
1571 	struct buffer_head *bh;  in clean_bdev_aliases()
1572 	struct buffer_head *head;  in clean_bdev_aliases()
1630 static struct buffer_head *create_page_buffers(struct page *page, struct inode *inode, unsigned int…  in create_page_buffers()
1676 	struct buffer_head *bh, *head;  in __block_write_full_page()
1765 		struct buffer_head *next = bh->b_this_page;  in __block_write_full_page()
1819 		struct buffer_head *next = bh->b_this_page;  in __block_write_full_page()
1841 	struct buffer_head *head, *bh;  in page_zero_new_buffers()
1876 iomap_to_bh(struct inode *inode, sector_t block, struct buffer_head *bh,  in iomap_to_bh()
1940 	struct buffer_head *bh, *head, *wait[2], **wait_bh=wait;  in __block_write_begin_int()
2028 	struct buffer_head *bh, *head;  in __block_commit_write()
2176 	struct buffer_head *bh, *head;  in block_is_partially_uptodate()
2220 	struct buffer_head *bh, *head, *arr[MAX_BUF_PER_PAGE];  in block_read_full_page()
2500 static void end_buffer_read_nobh(struct buffer_head *bh, int uptodate)  in end_buffer_read_nobh()
2510 static void attach_nobh_buffers(struct page *page, struct buffer_head *head)  in attach_nobh_buffers()
2512 	struct buffer_head *bh;  in attach_nobh_buffers()
2542 	struct buffer_head *head, *bh;  in nobh_write_begin()
2680 	struct buffer_head *head = fsdata;  in nobh_write_end()
2681 	struct buffer_head *bh;  in nobh_write_end()
2772 	struct buffer_head map_bh;  in nobh_truncate_page()
2850 	struct buffer_head *bh;  in block_truncate_page()
2962 	struct buffer_head tmp = {  in generic_block_bmap()
2973 	struct buffer_head *bh = bio->bi_private;  in end_bio_bh_io_sync()
3048 static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh,  in submit_bh_wbc()
3099 int submit_bh(int op, int op_flags, struct buffer_head *bh)  in submit_bh()
3131 void ll_rw_block(int op, int op_flags,  int nr, struct buffer_head *bhs[])  in ll_rw_block()
3136 		struct buffer_head *bh = bhs[i];  in ll_rw_block()
3160 void write_dirty_buffer(struct buffer_head *bh, int op_flags)  in write_dirty_buffer()
3178 int __sync_dirty_buffer(struct buffer_head *bh, int op_flags)  in __sync_dirty_buffer()
3198 int sync_dirty_buffer(struct buffer_head *bh)  in sync_dirty_buffer()
3224 static inline int buffer_busy(struct buffer_head *bh)  in buffer_busy()
3231 drop_buffers(struct page *page, struct buffer_head **buffers_to_free)  in drop_buffers()
3233 	struct buffer_head *head = page_buffers(page);  in drop_buffers()
3234 	struct buffer_head *bh;  in drop_buffers()
3244 		struct buffer_head *next = bh->b_this_page;  in drop_buffers()
3260 	struct buffer_head *buffers_to_free = NULL;  in try_to_free_buffers()
3294 		struct buffer_head *bh = buffers_to_free;  in try_to_free_buffers()
3297 			struct buffer_head *next = bh->b_this_page;  in try_to_free_buffers()
3366 struct buffer_head *alloc_buffer_head(gfp_t gfp_flags)  in alloc_buffer_head()
3368 	struct buffer_head *ret = kmem_cache_zalloc(bh_cachep, gfp_flags);  in alloc_buffer_head()
3380 void free_buffer_head(struct buffer_head *bh)  in free_buffer_head()
3412 int bh_uptodate_or_lock(struct buffer_head *bh)  in bh_uptodate_or_lock()
3430 int bh_submit_read(struct buffer_head *bh)  in bh_submit_read()
3455 			sizeof(struct buffer_head), 0,  in buffer_init()
3464 	max_buffer_heads = nrpages * (PAGE_SIZE / sizeof(struct buffer_head));  in buffer_init()