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| author | Anand Jain <Anand.Jain@oracle.com> | 2018-01-09 04:05:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-26 12:02:09 +0300 |
| commit | c231cec825a9d72642b712b6b62bb9c99b7407fd (patch) | |
| tree | d7b3dc186ee4d61d9c14c7289e39ea9911920930 /fs | |
| parent | d91bb7c6988bd6450284c762b33f2e1ea3fe7c97 (diff) | |
| download | linux-c231cec825a9d72642b712b6b62bb9c99b7407fd.tar.xz | |
btrfs: fail mount when sb flag is not in BTRFS_SUPER_FLAG_SUPP
[ Upstream commit 6f794e3c5c8f8fdd3b5bb20d9ded894e685b5bbe ]
It appears from the original commit [1] that there isn't any design
specific reason not to fail the mount instead of just warning. This
patch will change it to fail.
[1]
commit 319e4d0661e5323c9f9945f0f8fb5905e5fe74c3
btrfs: Enhance super validation check
Fixes: 319e4d0661e5323 ("btrfs: Enhance super validation check")
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/disk-io.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 167ce43cabe8..79f0f282a0ef 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -4063,9 +4063,11 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info) btrfs_err(fs_info, "no valid FS found"); ret = -EINVAL; } - if (btrfs_super_flags(sb) & ~BTRFS_SUPER_FLAG_SUPP) - btrfs_warn(fs_info, "unrecognized super flag: %llu", + if (btrfs_super_flags(sb) & ~BTRFS_SUPER_FLAG_SUPP) { + btrfs_err(fs_info, "unrecognized or unsupported super flag: %llu", btrfs_super_flags(sb) & ~BTRFS_SUPER_FLAG_SUPP); + ret = -EINVAL; + } if (btrfs_super_root_level(sb) >= BTRFS_MAX_LEVEL) { btrfs_err(fs_info, "tree_root level too big: %d >= %d", btrfs_super_root_level(sb), BTRFS_MAX_LEVEL); |