return error;
if (op != XFS_ATTRUPDATE_REMOVE || xfs_inode_hasattr(dp)) {
- error = xfs_iext_count_may_overflow(dp, XFS_ATTR_FORK,
+ error = xfs_iext_count_extend(args->trans, dp, XFS_ATTR_FORK,
XFS_IEXT_ATTR_MANIP_CNT(rmt_blks));
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(args->trans, dp,
- XFS_IEXT_ATTR_MANIP_CNT(rmt_blks));
if (error)
goto out_trans_cancel;
}
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
- error = xfs_iext_count_may_overflow(ip, whichfork,
+ error = xfs_iext_count_extend(tp, ip, whichfork,
XFS_IEXT_ADD_NOSPLIT_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip,
- XFS_IEXT_ADD_NOSPLIT_CNT);
if (error)
goto out_trans_cancel;
return 0;
}
+/*
+ * Check if the inode fork supports adding nr_to_add more extents.
+ *
+ * If it doesn't but we can upgrade it to large extent counters, do the upgrade.
+ * If we can't upgrade or are already using big counters but still can't fit the
+ * additional extents, return -EFBIG.
+ */
int
-xfs_iext_count_may_overflow(
+xfs_iext_count_extend(
+ struct xfs_trans *tp,
struct xfs_inode *ip,
int whichfork,
- int nr_to_add)
+ uint nr_to_add)
{
+ struct xfs_mount *mp = ip->i_mount;
+ bool has_large =
+ xfs_inode_has_large_extent_counts(ip);
struct xfs_ifork *ifp = xfs_ifork_ptr(ip, whichfork);
- uint64_t max_exts;
uint64_t nr_exts;
+ ASSERT(nr_to_add <= XFS_MAX_EXTCNT_UPGRADE_NR);
+
if (whichfork == XFS_COW_FORK)
return 0;
- max_exts = xfs_iext_max_nextents(xfs_inode_has_large_extent_counts(ip),
- whichfork);
-
- if (XFS_TEST_ERROR(false, ip->i_mount, XFS_ERRTAG_REDUCE_MAX_IEXTENTS))
- max_exts = 10;
-
+ /* no point in upgrading if if_nextents overflows */
nr_exts = ifp->if_nextents + nr_to_add;
- if (nr_exts < ifp->if_nextents || nr_exts > max_exts)
+ if (nr_exts < ifp->if_nextents)
return -EFBIG;
- return 0;
-}
-
-/*
- * Upgrade this inode's extent counter fields to be able to handle a potential
- * increase in the extent count by nr_to_add. Normally this is the same
- * quantity that caused xfs_iext_count_may_overflow() to return -EFBIG.
- */
-int
-xfs_iext_count_upgrade(
- struct xfs_trans *tp,
- struct xfs_inode *ip,
- uint nr_to_add)
-{
- ASSERT(nr_to_add <= XFS_MAX_EXTCNT_UPGRADE_NR);
-
- if (!xfs_has_large_extent_counts(ip->i_mount) ||
- xfs_inode_has_large_extent_counts(ip) ||
- XFS_TEST_ERROR(false, ip->i_mount, XFS_ERRTAG_REDUCE_MAX_IEXTENTS))
+ if (XFS_TEST_ERROR(false, mp, XFS_ERRTAG_REDUCE_MAX_IEXTENTS) &&
+ nr_exts > 10)
return -EFBIG;
- ip->i_diflags2 |= XFS_DIFLAG2_NREXT64;
- xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-
+ if (nr_exts > xfs_iext_max_nextents(has_large, whichfork)) {
+ if (has_large || !xfs_has_large_extent_counts(mp))
+ return -EFBIG;
+ ip->i_diflags2 |= XFS_DIFLAG2_NREXT64;
+ xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+ }
return 0;
}
int xfs_ifork_verify_local_data(struct xfs_inode *ip);
int xfs_ifork_verify_local_attr(struct xfs_inode *ip);
-int xfs_iext_count_may_overflow(struct xfs_inode *ip, int whichfork,
- int nr_to_add);
-int xfs_iext_count_upgrade(struct xfs_trans *tp, struct xfs_inode *ip,
- uint nr_to_add);
+int xfs_iext_count_extend(struct xfs_trans *tp, struct xfs_inode *ip,
+ int whichfork, uint nr_to_add);
bool xfs_ifork_is_realtime(struct xfs_inode *ip, int whichfork);
/* returns true if the fork has extents but they are not read in yet. */
else
iext_delta = XFS_IEXT_PUNCH_HOLE_CNT;
- error = xfs_iext_count_may_overflow(ip, work->bi_whichfork, iext_delta);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip, iext_delta);
+ error = xfs_iext_count_extend(tp, ip, work->bi_whichfork, iext_delta);
if (error)
goto err_cancel;
if (error)
break;
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
XFS_IEXT_ADD_NOSPLIT_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip,
- XFS_IEXT_ADD_NOSPLIT_CNT);
if (error)
goto error;
if (error)
return error;
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
XFS_IEXT_PUNCH_HOLE_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip, XFS_IEXT_PUNCH_HOLE_CNT);
if (error)
goto out_trans_cancel;
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
XFS_IEXT_PUNCH_HOLE_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip, XFS_IEXT_PUNCH_HOLE_CNT);
if (error)
goto out_trans_cancel;
trace_xfs_swap_extent_rmap_remap_piece(tip, &uirec);
if (xfs_bmap_is_real_extent(&uirec)) {
- error = xfs_iext_count_may_overflow(ip,
+ error = xfs_iext_count_extend(tp, ip,
XFS_DATA_FORK,
XFS_IEXT_SWAP_RMAP_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip,
- XFS_IEXT_SWAP_RMAP_CNT);
if (error)
goto out;
}
if (xfs_bmap_is_real_extent(&irec)) {
- error = xfs_iext_count_may_overflow(tip,
+ error = xfs_iext_count_extend(tp, tip,
XFS_DATA_FORK,
XFS_IEXT_SWAP_RMAP_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip,
- XFS_IEXT_SWAP_RMAP_CNT);
if (error)
goto out;
}
goto err_cancel;
}
- error = xfs_iext_count_may_overflow(quotip, XFS_DATA_FORK,
+ error = xfs_iext_count_extend(tp, quotip, XFS_DATA_FORK,
XFS_IEXT_ADD_NOSPLIT_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, quotip,
- XFS_IEXT_ADD_NOSPLIT_CNT);
if (error)
goto err_cancel;
if (error)
return error;
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK, nr_exts);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip, nr_exts);
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK, nr_exts);
if (error)
goto out_trans_cancel;
if (error)
return error;
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
XFS_IEXT_WRITE_UNWRITTEN_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip,
- XFS_IEXT_WRITE_UNWRITTEN_CNT);
if (error)
goto error_on_bmapi_transaction;
del = got;
xfs_trim_extent(&del, *offset_fsb, end_fsb - *offset_fsb);
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
XFS_IEXT_REFLINK_END_COW_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip,
- XFS_IEXT_REFLINK_END_COW_CNT);
if (error)
goto out_cancel;
if (dmap_written)
++iext_delta;
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK, iext_delta);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip, iext_delta);
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK, iext_delta);
if (error)
goto out_cancel;
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
XFS_IEXT_ADD_NOSPLIT_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip,
- XFS_IEXT_ADD_NOSPLIT_CNT);
if (error)
goto out_trans_cancel;