summaryrefslogtreecommitdiff
path: root/fs/f2fs/data.c
diff options
context:
space:
mode:
authorJaegeuk Kim <jaegeuk@kernel.org>2015-04-21 20:39:58 -0700
committerJaegeuk Kim <jaegeuk@kernel.org>2015-05-28 15:41:51 -0700
commitfcc85a4d86b5018f08717160c89c0eb50afd1dca (patch)
tree2f99ba2bc5ccf0ba32c6703a7a04d0731254b3af /fs/f2fs/data.c
parent6b3bd08f93a849edd56595391a54100d607ad7e4 (diff)
f2fs crypto: activate encryption support for fs APIs
This patch activates the following APIs for encryption support. The rules quoted by ext4 are: - An unencrypted directory may contain encrypted or unencrypted files or directories. - All files or directories in a directory must be protected using the same key as their containing directory. - Encrypted inode for regular file should not have inline_data. - Encrypted symlink and directory may have inline_data and inline_dentry. This patch activates the following APIs. 1. f2fs_link : validate context 2. f2fs_lookup : '' 3. f2fs_rename : '' 4. f2fs_create/f2fs_mkdir : inherit its dir's context 5. f2fs_direct_IO : do buffered io for regular files 6. f2fs_open : check encryption info 7. f2fs_file_mmap : '' 8. f2fs_setattr : '' 9. f2fs_file_write_iter : '' (Called by sys_io_submit) 10. f2fs_fallocate : do not support fcollapse 11. f2fs_evict_inode : free_encryption_info 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>
Diffstat (limited to 'fs/f2fs/data.c')
-rw-r--r--fs/f2fs/data.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 842fcdd9d226..473b4d41c0c8 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1982,6 +1982,9 @@ static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
return err;
}
+ if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode))
+ return 0;
+
if (check_direct_IO(inode, iter, offset))
return 0;