diff options
Diffstat (limited to 'fs/xfs/xfs_reflink.c')
| -rw-r--r-- | fs/xfs/xfs_reflink.c | 40 |
1 files changed, 16 insertions, 24 deletions
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index 9c58b4a83248..c4e35dccb803 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -1507,7 +1507,7 @@ xfs_reflink_clear_inode_flag( xfs_extlen_t aglen; xfs_agblock_t rbno; xfs_extlen_t rlen; - struct xfs_bmbt_irec map[2]; + struct xfs_bmbt_irec map; int nmaps; int error = 0; @@ -1521,37 +1521,29 @@ xfs_reflink_clear_inode_flag( * Look for extents in the file. Skip holes, delalloc, or * unwritten extents; they can't be reflinked. */ - error = xfs_bmapi_read(ip, fbno, end - fbno, map, &nmaps, 0); + error = xfs_bmapi_read(ip, fbno, end - fbno, &map, &nmaps, 0); if (error) return error; if (nmaps == 0) break; - if (map[0].br_startblock == HOLESTARTBLOCK || - map[0].br_startblock == DELAYSTARTBLOCK || - ISUNWRITTEN(&map[0])) + if (map.br_startblock == HOLESTARTBLOCK || + map.br_startblock == DELAYSTARTBLOCK || + ISUNWRITTEN(&map)) goto next; - map[1] = map[0]; - while (map[1].br_blockcount) { - agno = XFS_FSB_TO_AGNO(mp, map[1].br_startblock); - agbno = XFS_FSB_TO_AGBNO(mp, map[1].br_startblock); - aglen = map[1].br_blockcount; - - error = xfs_reflink_find_shared(mp, agno, agbno, aglen, - &rbno, &rlen, false); - if (error) - return error; - /* Is there still a shared block here? */ - if (rbno != NULLAGBLOCK) - return 0; - - map[1].br_blockcount -= aglen; - map[1].br_startoff += aglen; - map[1].br_startblock += aglen; - } + agno = XFS_FSB_TO_AGNO(mp, map.br_startblock); + agbno = XFS_FSB_TO_AGBNO(mp, map.br_startblock); + aglen = map.br_blockcount; + error = xfs_reflink_find_shared(mp, agno, agbno, aglen, + &rbno, &rlen, false); + if (error) + return error; + /* Is there still a shared block here? */ + if (rbno != NULLAGBLOCK) + return 0; next: - fbno = map[0].br_startoff + map[0].br_blockcount; + fbno = map.br_startoff + map.br_blockcount; } /* |