[PATCH openEuler-22.03-LTS-SP1] iomap: Don't finish dio under irq when there exists pages - Kernel

11 Jun 2024

hulk inclusion
category: perf
bugzilla: https://gitee.com/openeuler/kernel/issues/IA4DAW
CVE: NA
--------------------------------
Fixes: 6fac6d0e975afe1dec ("ext4: Optimize endio process for DIO overwrites")
Signed-off-by: Zhihao Cheng chengzhihao@huaweicloud.com
---
 fs/iomap/direct-io.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index 892a4f8109e5..f6b3311fcc3e 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -177,6 +177,11 @@ static void iomap_dio_bio_end_io(struct bio *bio)
    	goto release_bio;
    }
+	if ((dio->flags & IOMAP_DIO_INLINE_COMP) && dio->size &&
+	    (dio->flags & IOMAP_DIO_WRITE) &&
+	    file_inode(iocb->ki_filp)->i_mapping->nrpages)
+		dio->flags &= ~IOMAP_DIO_INLINE_COMP;
+
    /*
     * Flagged with IOMAP_DIO_INLINE_COMP, we can complete it inline
     */
-- 
2.31.1


    