xfs: make use of the l_targ field in struct xlog

Use the slightly shorter way to get at the buftarg for the log device
wherever we can in the log and log recovery code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index b3d5519..3686993 100644 (file)
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -927,7 +927,7 @@ xfs_log_unmount_write(xfs_mount_t *mp)
         * Or, if we are doing a forced umount (typically because of IO errors).
         */
        if (mp->m_flags & XFS_MOUNT_NORECOVERY ||
-           xfs_readonly_buftarg(log->l_mp->m_logdev_targp)) {
+           xfs_readonly_buftarg(log->l_targ)) {
                ASSERT(mp->m_flags & XFS_MOUNT_RDONLY);
                return 0;
        }
@@ -1442,7 +1442,7 @@ xlog_alloc_log(
         * having set it up properly.
         */
        error = -ENOMEM;
-       bp = xfs_buf_alloc(mp->m_logdev_targp, XFS_BUF_DADDR_NULL,
+       bp = xfs_buf_alloc(log->l_targ, XFS_BUF_DADDR_NULL,
                           BTOBB(log->l_iclog_size), XBF_NO_IOACCT);
        if (!bp)
                goto out_free_log;
@@ -1912,7 +1912,7 @@ xlog_sync(
         * synchronously here; for an internal log we can simply use the block
         * layer state machine for preflushes.
         */
-       if (log->l_mp->m_logdev_targp != log->l_mp->m_ddev_targp || split) {
+       if (log->l_targ != log->l_mp->m_ddev_targp || split) {
                xfs_blkdev_issue_flush(log->l_mp->m_ddev_targp);
                need_flush = false;
        }

diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 6f30a2f..883e930 100644 (file)
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -134,7 +134,7 @@ xlog_get_bp(
                nbblks += log->l_sectBBsize;
        nbblks = round_up(nbblks, log->l_sectBBsize);
 
-       bp = xfs_buf_get_uncached(log->l_mp->m_logdev_targp, nbblks, 0);
+       bp = xfs_buf_get_uncached(log->l_targ, nbblks, 0);
        if (bp)
                xfs_buf_unlock(bp);
        return bp;
@@ -1505,7 +1505,7 @@ xlog_find_tail(
         * But... if the -device- itself is readonly, just skip this.
         * We can't recover this device anyway, so it won't matter.
         */
-       if (!xfs_readonly_buftarg(log->l_mp->m_logdev_targp))
+       if (!xfs_readonly_buftarg(log->l_targ))
                error = xlog_clear_stale_blocks(log, tail_lsn);
 
 done: