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Diffstat (limited to 'fs/xfs/xfs_bmap.c')
-rw-r--r--fs/xfs/xfs_bmap.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 85e7e327bcd8..e74cfaf52248 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -5621,8 +5621,20 @@ xfs_getbmap(
XFS_FSB_TO_BB(mp, map[i].br_blockcount);
out[cur_ext].bmv_unused1 = 0;
out[cur_ext].bmv_unused2 = 0;
- ASSERT(((iflags & BMV_IF_DELALLOC) != 0) ||
- (map[i].br_startblock != DELAYSTARTBLOCK));
+
+ /*
+ * delayed allocation extents that start beyond EOF can
+ * occur due to speculative EOF allocation when the
+ * delalloc extent is larger than the largest freespace
+ * extent at conversion time. These extents cannot be
+ * converted by data writeback, so can exist here even
+ * if we are not supposed to be finding delalloc
+ * extents.
+ */
+ if (map[i].br_startblock == DELAYSTARTBLOCK &&
+ map[i].br_startoff <= XFS_B_TO_FSB(mp, XFS_ISIZE(ip)))
+ ASSERT((iflags & BMV_IF_DELALLOC) != 0);
+
if (map[i].br_startblock == HOLESTARTBLOCK &&
whichfork == XFS_ATTR_FORK) {
/* came to the end of attribute fork */