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f2fs: support in-memory inode checksum when checking consistency

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Enable in-memory inode checksum to protect metadata blocks from
in-memory scribbles when checking consistency, which has no
performance requirements.

Signed-off-by: Weichao Guo <guoweichao@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Weichao Guo
2018-03-09 23:10:21 +08:00
committed by Jaegeuk Kim
parent 4e423832a6
commit 54c55c4e4f
3 changed files with 21 additions and 1 deletions
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8
fs/f2fs/inode.c
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@@ -162,8 +162,12 @@ bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)))
return true;
#ifdef CONFIG_F2FS_CHECK_FS
if (!f2fs_enable_inode_chksum(sbi, page))
#else
if (!f2fs_enable_inode_chksum(sbi, page) ||
PageDirty(page) || PageWriteback(page))
#endif
return true;
ri = &F2FS_NODE(page)->i;
@@ -477,6 +481,10 @@ void f2fs_update_inode(struct inode *inode, struct page *node_page)
F2FS_I(inode)->i_disk_time[1] = timespec64_to_timespec(inode->i_ctime);
F2FS_I(inode)->i_disk_time[2] = timespec64_to_timespec(inode->i_mtime);
F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
#ifdef CONFIG_F2FS_CHECK_FS
f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
#endif
}
void f2fs_update_inode_page(struct inode *inode)