f2fs: fix to enlarge size of write_io_dummy mempool

It needs to double cache size of write_io_dummy mempool, otherwise we may run out of cache in scenraio of Data/Node IOs were issued concurrently. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
mariux64 · Feb 27, 2017 · a3ebfe4 · a3ebfe4
1 parent b6895e8
commit a3ebfe4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
@@ -1929,7 +1929,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 
 	if (F2FS_IO_SIZE(sbi) > 1) {
 		sbi->write_io_dummy =
-			mempool_create_page_pool(F2FS_IO_SIZE(sbi) - 1, 0);
+			mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0);
 		if (!sbi->write_io_dummy)
 			goto free_options;
 	}