return error;
xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+ error = xfs_iext_count_may_overflow(ip, whichfork,
+ XFS_IEXT_ADD_NOSPLIT_CNT);
+ if (error)
+ goto out_trans_cancel;
+
xfs_trans_ijoin(tp, ip, 0);
if (!xfs_iext_lookup_extent(ip, ifp, offset_fsb, &bma.icur, &bma.got) ||
#define XFS_IFEXTENTS 0x02 /* All extent pointers are read in */
#define XFS_IFBROOT 0x04 /* i_broot points to the bmap b-tree root */
+/*
+ * Worst-case increase in the fork extent count when we're adding a single
+ * extent to a fork and there's no possibility of splitting an existing mapping.
+ */
+#define XFS_IEXT_ADD_NOSPLIT_CNT (1)
+
/*
* Fork handling.
*/
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
+ if (bui_type == XFS_BMAP_MAP) {
+ error = xfs_iext_count_may_overflow(ip, whichfork,
+ XFS_IEXT_ADD_NOSPLIT_CNT);
+ if (error)
+ goto err_cancel;
+ }
+
count = bmap->me_len;
error = xfs_trans_log_finish_bmap_update(tp, budp, bui_type, ip,
whichfork, bmap->me_startoff, bmap->me_startblock,
if (error)
goto error1;
+ error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ XFS_IEXT_ADD_NOSPLIT_CNT);
+ if (error)
+ goto error0;
+
xfs_trans_ijoin(tp, ip, 0);
error = xfs_bmapi_write(tp, ip, startoffset_fsb,
return -ESRCH;
}
- /* Create the block mapping. */
xfs_trans_ijoin(tp, quotip, XFS_ILOCK_EXCL);
+
+ error = xfs_iext_count_may_overflow(quotip, XFS_DATA_FORK,
+ XFS_IEXT_ADD_NOSPLIT_CNT);
+ if (error)
+ return error;
+
+ /* Create the block mapping. */
error = xfs_bmapi_write(tp, quotip, dqp->q_fileoffset,
XFS_DQUOT_CLUSTER_SIZE_FSB, XFS_BMAPI_METADATA, 0, &map,
&nmaps);
if (error)
goto out_trans_cancel;
+ error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ XFS_IEXT_ADD_NOSPLIT_CNT);
+ if (error)
+ goto out_res_cancel;
+
xfs_trans_ijoin(tp, ip, 0);
/*
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+ error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ XFS_IEXT_ADD_NOSPLIT_CNT);
+ if (error)
+ goto out_trans_cancel;
+
/*
* Allocate blocks to the bitmap file.
*/