[PATCH 3/4] mm/compaction: use compact_unlock_should_abort in isolate_migratepages_block

[Kemeng Shi]

Use compact_unlock_should_abort in isolate_migratepages_block to remove
repeat code.

Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
---
 mm/compaction.c | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index 638146a49e89..c1dc821ac6e1 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -909,20 +909,10 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
 		 * contention, to give chance to IRQs. Abort completely if
 		 * a fatal signal is pending.
 		 */
-		if (!(low_pfn % COMPACT_CLUSTER_MAX)) {
-			if (locked) {
-				spin_unlock_irqrestore(locked, flags);
-				locked = NULL;
-			}
-
-			if (fatal_signal_pending(current)) {
-				cc->contended = true;
-				ret = -EINTR;
-
-				goto fatal_pending;
-			}
-
-			cond_resched();
+		if (!(low_pfn % COMPACT_CLUSTER_MAX) &&
+		    compact_unlock_should_abort(&locked, flags, cc)) {
+			ret = -EINTR;
+			goto fatal_pending;
 		}
 
 		nr_scanned++;
-- 
2.30.0