diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_inode_fork.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_fork.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c index 911ff791a896..bb63f38b97cc 100644 --- a/fs/xfs/libxfs/xfs_inode_fork.c +++ b/fs/xfs/libxfs/xfs_inode_fork.c @@ -1968,6 +1968,27 @@ xfs_iext_lookup_extent( } /* + * Returns the last extent before end, and if this extent doesn't cover + * end, update end to the end of the extent. + */ +bool +xfs_iext_lookup_extent_before( + struct xfs_inode *ip, + struct xfs_ifork *ifp, + xfs_fileoff_t *end, + xfs_extnum_t *idxp, + struct xfs_bmbt_irec *gotp) +{ + if (xfs_iext_lookup_extent(ip, ifp, *end - 1, idxp, gotp) && + gotp->br_startoff <= *end - 1) + return true; + if (!xfs_iext_get_extent(ifp, --*idxp, gotp)) + return false; + *end = gotp->br_startoff + gotp->br_blockcount; + return true; +} + +/* * Return true if there is an extent at index idx, and return the expanded * extent structure at idx in that case. Else return false. */ |