f2fs: don't bother checking for encryption key in ->write_iter()
authorEric Biggers <ebiggers@google.com>
Tue, 23 May 2017 00:39:45 +0000 (17:39 -0700)
committerJaegeuk Kim <jaegeuk@kernel.org>
Wed, 24 May 2017 04:11:08 +0000 (21:11 -0700)
commitaaebdee8b88225ebe28af2afc60446f9fd7228f9
tree5d55185cdfcb8ed05413bf7139df37d2dc6e7f22
parentb82a6ea6ec39f1b5ef949a38e334eed0dc29f4d1
f2fs: don't bother checking for encryption key in ->write_iter()

Since only an open file can be written to, and we only allow open()ing
an encrypted file when its key is available, there is no need to check
for the key again before permitting each ->write_iter().

This code was also broken in that it wouldn't actually have failed if
the key was in fact unavailable.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: David Gstir <david@sigma-star.at>
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
fs/f2fs/file.c