diff options
Diffstat (limited to 'fs/xfs/xfs_iomap.c')
-rw-r--r-- | fs/xfs/xfs_iomap.c | 47 |
1 files changed, 22 insertions, 25 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index e7f3afd348ac..edb2be9e8195 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -156,25 +156,33 @@ xfs_eof_alignment( return align; } -STATIC int +/* + * Check if last_fsb is outside the last extent, and if so grow it to the next + * stripe unit boundary. + */ +static xfs_fileoff_t xfs_iomap_eof_align_last_fsb( struct xfs_inode *ip, - xfs_extlen_t extsize, - xfs_fileoff_t *last_fsb) + xfs_fileoff_t end_fsb) { - xfs_extlen_t align = xfs_eof_alignment(ip, extsize); + struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); + xfs_extlen_t extsz = xfs_get_extsz_hint(ip); + xfs_extlen_t align = xfs_eof_alignment(ip, extsz); + struct xfs_bmbt_irec irec; + struct xfs_iext_cursor icur; + + ASSERT(ifp->if_flags & XFS_IFEXTENTS); if (align) { - xfs_fileoff_t new_last_fsb = roundup_64(*last_fsb, align); - int eof, error; + xfs_fileoff_t aligned_end_fsb = roundup_64(end_fsb, align); - error = xfs_bmap_eof(ip, new_last_fsb, XFS_DATA_FORK, &eof); - if (error) - return error; - if (eof) - *last_fsb = new_last_fsb; + xfs_iext_last(ifp, &icur); + if (!xfs_iext_get_extent(ifp, &icur, &irec) || + aligned_end_fsb >= irec.br_startoff + irec.br_blockcount) + return aligned_end_fsb; } - return 0; + + return end_fsb; } int @@ -206,19 +214,8 @@ xfs_iomap_write_direct( ASSERT(xfs_isilocked(ip, lockmode)); - if ((offset + count) > XFS_ISIZE(ip)) { - /* - * Assert that the in-core extent list is present since this can - * call xfs_iread_extents() and we only have the ilock shared. - * This should be safe because the lock was held around a bmapi - * call in the caller and we only need it to access the in-core - * list. - */ - ASSERT(XFS_IFORK_PTR(ip, XFS_DATA_FORK)->if_flags & - XFS_IFEXTENTS); - error = xfs_iomap_eof_align_last_fsb(ip, extsz, &last_fsb); - if (error) - goto out_unlock; + if (offset + count > XFS_ISIZE(ip)) { + last_fsb = xfs_iomap_eof_align_last_fsb(ip, last_fsb); } else { if (nmaps && (imap->br_startblock == HOLESTARTBLOCK)) last_fsb = min(last_fsb, (xfs_fileoff_t) |