f2fs: fix to update F2FS_{CP_}WB_DATA count correctly
authorChao Yu <yuchao0@huawei.com>
Mon, 27 Feb 2017 09:10:45 +0000 (17:10 +0800)
committerJaegeuk Kim <jaegeuk@kernel.org>
Mon, 27 Feb 2017 18:40:08 +0000 (10:40 -0800)
We should only account F2FS_{CP_}WB_DATA IOs for write path, fix it.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
fs/f2fs/data.c

index b0a2e3faabb21d0bd607ea2b8ac23b448ac7d04c..1375fef11146d55eebbe855d311664c1e2851526 100644 (file)
@@ -398,7 +398,8 @@ alloc_new:
                if ((fio->type == DATA || fio->type == NODE) &&
                                fio->new_blkaddr & F2FS_IO_SIZE_MASK(sbi)) {
                        err = -EAGAIN;
-                       dec_page_count(sbi, WB_DATA_TYPE(bio_page));
+                       if (!is_read)
+                               dec_page_count(sbi, WB_DATA_TYPE(bio_page));
                        goto out_fail;
                }
                io->bio = __bio_alloc(sbi, fio->new_blkaddr,