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f2fs: Add sanity_check_inode() function

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This was done as part of commit 5d64600d4f33 "f2fs: avoid bug_on on
corrupted inode" upstream, but the specific check that commit added is
not applicable to 4.14.

Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ben Hutchings 2018-11-29 19:17:34 +00:00 committed by Greg Kroah-Hartman
parent f3d6361a96
commit 2598fc56ed
1 changed files with 11 additions and 0 deletions
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11
fs/f2fs/inode.c
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@ -180,6 +180,13 @@ void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
}
static bool sanity_check_inode(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
return true;
}
static int do_read_inode(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@ -281,6 +288,10 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
ret = do_read_inode(inode);
if (ret)
goto bad_inode;
if (!sanity_check_inode(inode)) {
ret = -EINVAL;
goto bad_inode;
}
make_now:
if (ino == F2FS_NODE_INO(sbi)) {
inode->i_mapping->a_ops = &f2fs_node_aops;