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authorTheodore Ts'o <tytso@mit.edu>2015-05-01 16:56:45 -0400
committerTheodore Ts'o <tytso@mit.edu>2015-05-01 16:56:45 -0400
commit5de0b4d0cd153c471640b13aae6ae6d18d0a4603 (patch)
treeea42bad982e25f1c880e363b55e8d1ff82e773fe /fs/ext4/dir.c
parent6ddb2447846a8ece111e316a2863c2355023682d (diff)
downloadop-kernel-dev-5de0b4d0cd153c471640b13aae6ae6d18d0a4603.zip
op-kernel-dev-5de0b4d0cd153c471640b13aae6ae6d18d0a4603.tar.gz
ext4 crypto: simplify and speed up filename encryption
Avoid using SHA-1 when calculating the user-visible filename when the encryption key is available, and avoid decrypting lots of filenames when searching for a directory entry in a directory block. Change-Id: If4655f144784978ba0305b597bfa1c8d7bb69e63 Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/dir.c')
-rw-r--r--fs/ext4/dir.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 61db51a5..5665d82 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -249,7 +249,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
} else {
/* Directory is encrypted */
err = ext4_fname_disk_to_usr(enc_ctx,
- de, &fname_crypto_str);
+ NULL, de, &fname_crypto_str);
if (err < 0)
goto errout;
if (!dir_emit(ctx,
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