diff options
| author | Christoph Hellwig <hch@lst.de> | 2016-06-21 09:52:47 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-06-21 09:52:47 +1000 |
| commit | 3b3dce05279b97525741b7949208017307e05621 (patch) | |
| tree | 0e57f8c1489b1fba16bc20e85ad9833c49882fd0 /fs/xfs/xfs_iomap.c | |
| parent | 8be9f564d25e7adc582f9f3689040ce5aa6f1f5b (diff) | |
xfs: make xfs_bmbt_to_iomap available outside of xfs_pnfs.c
And ensure it works for RT subvolume files an set the block device,
both of which will be needed to be able to use the function in the
buffered write path.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_iomap.c')
| -rw-r--r-- | fs/xfs/xfs_iomap.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 58391355a44d..2f3719461cbd 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -15,6 +15,7 @@ * along with this program; if not, write the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include <linux/iomap.h> #include "xfs.h" #include "xfs_fs.h" #include "xfs_shared.h" @@ -940,3 +941,29 @@ error_on_bmapi_transaction: xfs_iunlock(ip, XFS_ILOCK_EXCL); return error; } + +void +xfs_bmbt_to_iomap( + struct xfs_inode *ip, + struct iomap *iomap, + struct xfs_bmbt_irec *imap) +{ + struct xfs_mount *mp = ip->i_mount; + + if (imap->br_startblock == HOLESTARTBLOCK) { + iomap->blkno = IOMAP_NULL_BLOCK; + iomap->type = IOMAP_HOLE; + } else if (imap->br_startblock == DELAYSTARTBLOCK) { + iomap->blkno = IOMAP_NULL_BLOCK; + iomap->type = IOMAP_DELALLOC; + } else { + iomap->blkno = xfs_fsb_to_db(ip, imap->br_startblock); + if (imap->br_state == XFS_EXT_UNWRITTEN) + iomap->type = IOMAP_UNWRITTEN; + else + iomap->type = IOMAP_MAPPED; + } + iomap->offset = XFS_FSB_TO_B(mp, imap->br_startoff); + iomap->length = XFS_FSB_TO_B(mp, imap->br_blockcount); + iomap->bdev = xfs_find_bdev_for_inode(VFS_I(ip)); +} |