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| author | Weichao Guo <guoweichao@huawei.com> | 2018-03-09 23:10:21 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-07-27 18:03:59 +0900 |
| commit | 54c55c4e4fc7ec35f96a3b6a626314b0b7256137 (patch) | |
| tree | f32b8aa53f4fc9fc633cbc6ffcee1b54e03c8ec8 /fs/f2fs | |
| parent | 4e423832a675af671eab9d8a3d96636aa63faa9e (diff) | |
| download | linux-54c55c4e4fc7ec35f96a3b6a626314b0b7256137.tar.gz linux-54c55c4e4fc7ec35f96a3b6a626314b0b7256137.tar.bz2 linux-54c55c4e4fc7ec35f96a3b6a626314b0b7256137.zip | |
f2fs: support in-memory inode checksum when checking consistency
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>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/inode.c | 8 | ||||
| -rw-r--r-- | fs/f2fs/node.c | 10 | ||||
| -rw-r--r-- | fs/f2fs/node.h | 4 |
3 files changed, 21 insertions, 1 deletions
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index f91dd017a65c..ec672c7ac52c 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -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) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 1061dd18b09c..3d1240949d87 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1141,8 +1141,12 @@ static int read_node_page(struct page *page, int op_flags) .encrypted_page = NULL, }; - if (PageUptodate(page)) + if (PageUptodate(page)) { +#ifdef CONFIG_F2FS_CHECK_FS + f2fs_bug_on(sbi, !f2fs_inode_chksum_verify(sbi, page)); +#endif return LOCKED_PAGE; + } f2fs_get_node_info(sbi, page->index, &ni); @@ -1775,6 +1779,10 @@ static int f2fs_set_node_page_dirty(struct page *page) if (!PageUptodate(page)) SetPageUptodate(page); +#ifdef CONFIG_F2FS_CHECK_FS + if (IS_INODE(page)) + f2fs_inode_chksum_set(F2FS_P_SB(page), page); +#endif if (!PageDirty(page)) { __set_page_dirty_nobuffers(page); inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_NODES); diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h index b95e49e4a928..8f34bdffde93 100644 --- a/fs/f2fs/node.h +++ b/fs/f2fs/node.h @@ -444,6 +444,10 @@ static inline void set_mark(struct page *page, int mark, int type) else flag &= ~(0x1 << type); rn->footer.flag = cpu_to_le32(flag); + +#ifdef CONFIG_F2FS_CHECK_FS + f2fs_inode_chksum_set(F2FS_P_SB(page), page); +#endif } #define set_dentry_mark(page, mark) set_mark(page, mark, DENT_BIT_SHIFT) #define set_fsync_mark(page, mark) set_mark(page, mark, FSYNC_BIT_SHIFT) |