Lines Matching +full:compound +full:- +full:device
1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
25 #define XFS_BUF_DADDR_NULL ((xfs_daddr_t) (-1LL))
27 #define XBF_READ (1u << 0) /* buffer intended for reading from device */
28 #define XBF_WRITE (1u << 1) /* buffer intended for writing to device */
29 #define XBF_READ_AHEAD (1u << 2) /* asynchronous read-ahead */
30 #define XBF_NO_IOACCT (1u << 3) /* bypass I/O accounting (non-LRU bufs) */
95 * The xfs_buftarg contains 2 notions of "sector size" -
99 * 2) The device logical sector size
101 * The first is specified at mkfs time, and is stored on-disk in the
104 * The latter is derived from the underlying device, and controls direct IO
127 /* built-in cache, if we're not using the perag one */
165 * fast-path on locking.
188 struct xfs_buftarg *b_target; /* buffer target (device) */
197 struct xfs_buf_map *b_maps; /* compound buffer map */
198 struct xfs_buf_map __b_map; /* inline compound buffer map */
218 * different errors. e.g. a block device might change ENOSPC to EIO when
219 * a failure timeout occurs, so we want to re-initialise the error
307 ((bp)->b_sema.count <= 0)
341 return bp->b_maps[0].bm_bn; in xfs_buf_daddr()
353 if (!list_empty(&bp->b_lru) || atomic_read(&bp->b_lru_ref) > 1) in xfs_buf_oneshot()
355 atomic_set(&bp->b_lru_ref, 0); in xfs_buf_oneshot()
360 return atomic_read(&bp->b_pin_count); in xfs_buf_ispinned()
366 return xfs_verify_cksum(bp->b_addr, BBTOB(bp->b_length), in xfs_buf_verify_cksum()
373 xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), in xfs_buf_update_cksum()
387 #define xfs_getsize_buftarg(buftarg) block_size((buftarg)->bt_bdev)
388 #define xfs_readonly_buftarg(buftarg) bdev_read_only((buftarg)->bt_bdev)