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| author |   Chao Yu <yuchao0@huawei.com> | 2016-09-20 11:04:18 +0800 |
|---|---|---|
| committer |   Jaegeuk Kim <jaegeuk@kernel.org> | 2016-09-30 17:34:20 -0700 |
| commit | aaec2b1d18792a5f27b69ff37f34f43f89f5aa3b (patch) | |
| tree | d21e6ad4e210ad826580c03a55cb97230543c280 /fs/f2fs/node.h | |
| parent | f2fs: fix to avoid race condition when updating sbi flag (diff) | |
| download | linux-dev-aaec2b1d18792a5f27b69ff37f34f43f89f5aa3b.tar.xz linux-dev-aaec2b1d18792a5f27b69ff37f34f43f89f5aa3b.zip | |
f2fs: introduce cp_lock to protect updating of ckpt_flags
This patch introduces spinlock to protect updating process of ckpt_flags
field in struct f2fs_checkpoint, it avoids incorrectly updating in race
condition.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
[Jaegeuk Kim: add __is_set_ckpt_flags likewise __set_ckpt_flags]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/node.h')
| -rw-r--r-- | fs/f2fs/node.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h index e8ca64a70de0..868bec65e51c 100644 --- a/fs/f2fs/node.h +++ b/fs/f2fs/node.h @@ -293,7 +293,7 @@ static inline void fill_node_footer_blkaddr(struct page *page, block_t blkaddr) size_t crc_offset = le32_to_cpu(ckpt->checksum_offset); __u64 cp_ver = le64_to_cpu(ckpt->checkpoint_ver); - if (is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG)) { + if (__is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG)) { __u64 crc = le32_to_cpu(*((__le32 *) ((unsigned char *)ckpt + crc_offset))); cp_ver |= (crc << 32); @@ -308,7 +308,7 @@ static inline bool is_recoverable_dnode(struct page *page) size_t crc_offset = le32_to_cpu(ckpt->checksum_offset); __u64 cp_ver = cur_cp_version(ckpt); - if (is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG)) { + if (__is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG)) { __u64 crc = le32_to_cpu(*((__le32 *) ((unsigned char *)ckpt + crc_offset))); cp_ver |= (crc << 32); |