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-rw-r--r--fs/fs-writeback.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 1f4a10ece2f1..e0259a163f98 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -516,13 +516,16 @@ writeback_single_inode(struct inode *inode, struct bdi_writeback *wb,
516 } 516 }
517 WARN_ON(inode->i_state & I_SYNC); 517 WARN_ON(inode->i_state & I_SYNC);
518 /* 518 /*
519 * Skip inode if it is clean. We don't want to mess with writeback 519 * Skip inode if it is clean and we have no outstanding writeback in
520 * lists in this function since flusher thread may be doing for example 520 * WB_SYNC_ALL mode. We don't want to mess with writeback lists in this
521 * sync in parallel and if we move the inode, it could get skipped. So 521 * function since flusher thread may be doing for example sync in
522 * here we make sure inode is on some writeback list and leave it there 522 * parallel and if we move the inode, it could get skipped. So here we
523 * unless we have completely cleaned the inode. 523 * make sure inode is on some writeback list and leave it there unless
524 * we have completely cleaned the inode.
524 */ 525 */
525 if (!(inode->i_state & I_DIRTY)) 526 if (!(inode->i_state & I_DIRTY) &&
527 (wbc->sync_mode != WB_SYNC_ALL ||
528 !mapping_tagged(inode->i_mapping, PAGECACHE_TAG_WRITEBACK)))
526 goto out; 529 goto out;
527 inode->i_state |= I_SYNC; 530 inode->i_state |= I_SYNC;
528 spin_unlock(&inode->i_lock); 531 spin_unlock(&inode->i_lock);