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-rw-r--r--fs/btrfs/extent_io.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 617ea38e6fd7..6def411b2eba 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4541,6 +4541,8 @@ next:
/* once for us */
free_extent_map(em);
+
+ cond_resched(); /* Allow large-extent preemption. */
}
}
return try_release_extent_state(tree, page, mask);