Commit Graph

5 Commits

Author SHA1 Message Date
Jaegeuk Kim e5e0906b6b f2fs crypto: clean up error handling in f2fs_fname_setup_filename
Sync with:
  ext4 crypto: clean up error handling in ext4_fname_setup_filename

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-06-01 16:21:08 -07:00
Jaegeuk Kim 26bf3dc7e2 f2fs crypto: use per-inode tfm structure
This patch applies the following ext4 patch:

  ext4 crypto: use per-inode tfm structure

As suggested by Herbert Xu, we shouldn't allocate a new tfm each time
we read or write a page.  Instead we can use a single tfm hanging off
the inode's crypt_info structure for all of our encryption needs for
that inode, since the tfm can be used by multiple crypto requests in
parallel.

Also use cmpxchg() to avoid races that could result in crypt_info
structure getting doubly allocated or doubly freed.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-06-01 16:21:04 -07:00
Chao Yu 7bf4b5576a f2fs crypto: fix to release buffer for fname crypto
This patch fixes memory leak issue in error path of f2fs_fname_setup_filename().

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-06-01 16:20:57 -07:00
Jaegeuk Kim 640778fbc9 f2fs crypto: get rid of ci_mode from struct f2fs_crypt_info
This patch integrates the below patch into f2fs.

"ext4 crypto: get rid of ci_mode from struct ext4_crypt_info

The ci_mode field was superfluous, and getting rid of it gets rid of
an unused hole in the structure."

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-06-01 16:20:56 -07:00
Jaegeuk Kim 6b3bd08f93 f2fs crypto: filename encryption facilities
This patch adds filename encryption infra.
Most of codes are copied from ext4 part, but changed to adjust f2fs
directory structure.

Signed-off-by: Uday Savagaonkar <savagaon@google.com>
Signed-off-by: Ildar Muslukhov <ildarm@google.com>
Signed-off-by: Michael Halcrow <mhalcrow@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-05-28 15:41:50 -07:00