From aaec2b1d18792a5f27b69ff37f34f43f89f5aa3b Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Tue, 20 Sep 2016 11:04:18 +0800 Subject: 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 [Jaegeuk Kim: add __is_set_ckpt_flags likewise __set_ckpt_flags] Signed-off-by: Jaegeuk Kim --- fs/f2fs/node.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/f2fs/node.h') 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); -- cgit v1.2.3-55-g7522