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| author | Eric Biggers <ebiggers@google.com> | 2020-10-30 17:45:56 -0700 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2020-11-06 09:48:55 -0800 |
| commit | 92cfcd030e4b1de11a6b1edb0840e55c26332d31 (patch) | |
| tree | 73b98ccd1c786537e0455cd239503a0871d545f1 /fs/crypto | |
| parent | 3cea11cd5e3b00d91caf0b4730194039b45c5891 (diff) | |
| download | lwn-92cfcd030e4b1de11a6b1edb0840e55c26332d31.tar.gz lwn-92cfcd030e4b1de11a6b1edb0840e55c26332d31.zip | |
fscrypt: remove reachable WARN in fscrypt_setup_iv_ino_lblk_32_key()
I_CREATING isn't actually set until the inode has been assigned an inode
number and inserted into the inode hash table. So the WARN_ON() in
fscrypt_setup_iv_ino_lblk_32_key() is wrong, and it can trigger when
creating an encrypted file on ext4. Remove it.
This was sometimes causing xfstest generic/602 to fail on ext4. I
didn't notice it before because due to a separate oversight, new inodes
that haven't been assigned an inode number yet don't necessarily have
i_ino == 0 as I had thought, so by chance I never saw the test fail.
Fixes: a992b20cd4ee ("fscrypt: add fscrypt_prepare_new_inode() and fscrypt_set_context()")
Reported-by: Theodore Y. Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20201031004556.87862-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Diffstat (limited to 'fs/crypto')
| -rw-r--r-- | fs/crypto/keysetup.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/crypto/keysetup.c b/fs/crypto/keysetup.c index d3c3e5d9b41f..d595abb8ef90 100644 --- a/fs/crypto/keysetup.c +++ b/fs/crypto/keysetup.c @@ -269,9 +269,7 @@ unlock: * New inodes may not have an inode number assigned yet. * Hashing their inode number is delayed until later. */ - if (ci->ci_inode->i_ino == 0) - WARN_ON(!(ci->ci_inode->i_state & I_CREATING)); - else + if (ci->ci_inode->i_ino) fscrypt_hash_inode_number(ci, mk); return 0; } |