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authorChao Yu <yuchao0@huawei.com>2018-08-11 23:42:09 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2018-08-14 10:29:11 -0700
commitdda9f4b9cac6bdd2a96253b4444d7a6ce5132edb (patch)
tree3df64636bbb4194633c9bd3b2a1e09ed583bfa43 /fs/f2fs
parent7fa750a163089cf96866de402314d853a96cb342 (diff)
downloadlinux-dda9f4b9cac6bdd2a96253b4444d7a6ce5132edb.tar.bz2
f2fs: fix to skip verifying block address for non-regular inode
generic/184 1s ... [failed, exit status 1]- output mismatch --- tests/generic/184.out 2015-01-11 16:52:27.643681072 +0800 QA output created by 184 - silence is golden +rm: cannot remove '/mnt/f2fs/null': Bad address +mknod: '/mnt/f2fs/null': Bad address +chmod: cannot access '/mnt/f2fs/null': Bad address +./tests/generic/184: line 36: /mnt/f2fs/null: Bad address ... F2FS-fs (zram0): access invalid blkaddr:259 EIP: f2fs_is_valid_blkaddr+0x14b/0x1b0 [f2fs] f2fs_iget+0x927/0x1010 [f2fs] f2fs_lookup+0x26e/0x630 [f2fs] __lookup_slow+0xb3/0x140 lookup_slow+0x31/0x50 walk_component+0x185/0x1f0 path_lookupat+0x51/0x190 filename_lookup+0x7f/0x140 user_path_at_empty+0x36/0x40 vfs_statx+0x61/0xc0 __do_sys_stat64+0x29/0x40 sys_stat64+0x13/0x20 do_fast_syscall_32+0xaa/0x22c entry_SYSENTER_32+0x53/0x86 In f2fs_iget(), we will check inode's first block address, if it is valid, we will set FI_FIRST_BLOCK_WRITTEN flag in inode. But we should only do this for regular inode, otherwise, like special inode, i_addr[0] is used for storing device info instead of block address, it will fail checking flow obviously. So for non-regular inode, let's skip verifying address and setting flag. Signed-off-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.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 6908896a1950..959df2249875 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -371,13 +371,15 @@ static int do_read_inode(struct inode *inode)
/* get rdev by using inline_info */
__get_inode_rdev(inode, ri);
- err = __written_first_block(sbi, ri);
- if (err < 0) {
- f2fs_put_page(node_page, 1);
- return err;
+ if (S_ISREG(inode->i_mode)) {
+ err = __written_first_block(sbi, ri);
+ if (err < 0) {
+ f2fs_put_page(node_page, 1);
+ return err;
+ }
+ if (!err)
+ set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
}
- if (!err)
- set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
fi->last_disk_size = inode->i_size;