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| author | Chao Yu <yuchao0@huawei.com> | 2018-08-11 23:42:09 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-08-14 10:29:11 -0700 |
| commit | dda9f4b9cac6bdd2a96253b4444d7a6ce5132edb (patch) | |
| tree | 3df64636bbb4194633c9bd3b2a1e09ed583bfa43 /fs/f2fs/inode.c | |
| parent | 7fa750a163089cf96866de402314d853a96cb342 (diff) | |
| download | linux-stable-dda9f4b9cac6bdd2a96253b4444d7a6ce5132edb.tar.gz linux-stable-dda9f4b9cac6bdd2a96253b4444d7a6ce5132edb.tar.bz2 linux-stable-dda9f4b9cac6bdd2a96253b4444d7a6ce5132edb.zip | |
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/inode.c')
| -rw-r--r-- | fs/f2fs/inode.c | 14 |
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; |