f2fs crypto: use slab caches
This patch integrates the below patch into f2fs.
"ext4 crypto: use slab caches
Use slab caches the ext4_crypto_ctx and ext4_crypt_info structures for
slighly better memory efficiency and debuggability."
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/crypto_key.c b/fs/f2fs/crypto_key.c
index c7d414d..6b9312b 100644
--- a/fs/f2fs/crypto_key.c
+++ b/fs/f2fs/crypto_key.c
@@ -99,7 +99,7 @@
key_put(ci->ci_keyring_key);
crypto_free_ablkcipher(ci->ci_ctfm);
memzero_explicit(&ci->ci_raw, sizeof(ci->ci_raw));
- kfree(ci);
+ kmem_cache_free(f2fs_crypt_info_cachep, ci);
fi->i_crypt_info = NULL;
}
@@ -137,7 +137,7 @@
return -EINVAL;
res = 0;
- crypt_info = kmalloc(sizeof(struct f2fs_crypt_info), GFP_NOFS);
+ crypt_info = kmem_cache_alloc(f2fs_crypt_info_cachep, GFP_NOFS);
if (!crypt_info)
return -ENOMEM;
@@ -187,7 +187,7 @@
if (res < 0) {
if (res == -ENOKEY)
res = 0;
- kfree(crypt_info);
+ kmem_cache_free(f2fs_crypt_info_cachep, crypt_info);
} else {
fi->i_crypt_info = crypt_info;
crypt_info->ci_keyring_key = keyring_key;