lkml.org 
[lkml]   [2018]   [Jan]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/2] f2fs: use flexible array for f2fs_checkpoint::sit_nat_version_bitmap
Date
If we need an array with variable size in the end of structure, we
can utilize flexible array feature which is supported in C99, so
let's change sit_nat_version_bitmap[] to flexible array in struct
f2fs_checkpoint for readability.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
fs/f2fs/f2fs.h | 4 ++--
include/linux/f2fs_fs.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 83d1f697388b..ad19d29688ae 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1719,13 +1719,13 @@ static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)

if (__cp_payload(sbi) > 0) {
if (flag == NAT_BITMAP)
- return &ckpt->sit_nat_version_bitmap;
+ return ckpt->sit_nat_version_bitmap;
else
return (unsigned char *)ckpt + F2FS_BLKSIZE;
} else {
offset = (flag == NAT_BITMAP) ?
le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
- return &ckpt->sit_nat_version_bitmap + offset;
+ return ckpt->sit_nat_version_bitmap + offset;
}
}

diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 43e98d30d2df..564f65fc192f 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -157,7 +157,7 @@ struct f2fs_checkpoint {
unsigned char alloc_type[MAX_ACTIVE_LOGS];

/* SIT and NAT version bitmap */
- unsigned char sit_nat_version_bitmap[1];
+ unsigned char sit_nat_version_bitmap[];
} __packed;

/*
--
2.15.0.55.gc2ece9dc4de6
\
 
 \ /
  Last update: 2018-01-03 10:35    [W:0.024 / U:17.872 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site