f2fs: shrink size of struct discard_cmd

In order to shrink size of struct discard_cmd, change variable type of
@state in struct discard_cmd from int to unsigned char.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 5759671..6f671c7 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -220,7 +220,7 @@ struct discard_cmd {
        struct completion wait;         /* compleation */
        struct block_device *bdev;      /* bdev */
        unsigned short ref;             /* reference count */
-       int state;                      /* state */
+       unsigned char state;            /* state */
        int error;                      /* bio error */
 };