diff options
Diffstat (limited to 'fs/crypto')
| -rw-r--r-- | fs/crypto/crypto.c | 9 | ||||
| -rw-r--r-- | fs/crypto/fscrypt_private.h | 2 | ||||
| -rw-r--r-- | fs/crypto/keyinfo.c | 2 |
3 files changed, 9 insertions, 4 deletions
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c index 5ffc59436397..bc1d4781b9ec 100644 --- a/fs/crypto/crypto.c +++ b/fs/crypto/crypto.c @@ -525,17 +525,22 @@ static void fscrypt_destroy(void) /** * fscrypt_initialize() - allocate major buffers for fs encryption. + * @cop_flags: fscrypt operations flags * * We only call this when we start accessing encrypted files, since it * results in memory getting allocated that wouldn't otherwise be used. * * Return: Zero on success, non-zero otherwise. */ -int fscrypt_initialize(void) +int fscrypt_initialize(unsigned int cop_flags) { int i, res = -ENOMEM; - if (fscrypt_bounce_page_pool) + /* + * No need to allocate a bounce page pool if there already is one or + * this FS won't use it. + */ + if (cop_flags & FS_CFLG_OWN_PAGES || fscrypt_bounce_page_pool) return 0; mutex_lock(&fscrypt_init_mutex); diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h index c98b2a7fb6d3..7ba10cd45a2e 100644 --- a/fs/crypto/fscrypt_private.h +++ b/fs/crypto/fscrypt_private.h @@ -85,7 +85,7 @@ struct fscrypt_completion_result { /* crypto.c */ -int fscrypt_initialize(void); +int fscrypt_initialize(unsigned int cop_flags); /* keyinfo.c */ extern int fscrypt_get_crypt_info(struct inode *); diff --git a/fs/crypto/keyinfo.c b/fs/crypto/keyinfo.c index 35d3317a27b3..6eeea1dcba41 100644 --- a/fs/crypto/keyinfo.c +++ b/fs/crypto/keyinfo.c @@ -188,7 +188,7 @@ int fscrypt_get_crypt_info(struct inode *inode) u8 *raw_key = NULL; int res; - res = fscrypt_initialize(); + res = fscrypt_initialize(inode->i_sb->s_cop->flags); if (res) return res; |