You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

Eric Sandeen af440f5292 ecryptfs: check for existing key_tfm at mount time ... Jeff Moyer pointed out that a mount; umount loop of ecryptfs, with the same cipher & other mount options, created a new ecryptfs_key_tfm_cache item each time, and the cache could grow quite large this way. Looking at this with mhalcrow, we saw that ecryptfs_parse_options() unconditionally called ecryptfs_add_new_key_tfm(), which is what was adding these items. Refactor ecryptfs_get_tfm_and_mutex_for_cipher_name() to create a new helper function, ecryptfs_tfm_exists(), which checks for the cipher on the cached key_tfm_list, and sets a pointer to it if it exists. This can then be called from ecryptfs_parse_options(), and new key_tfm's can be added only when a cached one is not found. With list locking changes suggested by akpm. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		17 years ago
..
Makefile	…
crypto.c	ecryptfs: check for existing key_tfm at mount time	17 years ago
debug.c	…
dentry.c	…
ecryptfs_kernel.h	ecryptfs: check for existing key_tfm at mount time	17 years ago
file.c	…
inode.c	…
keystore.c	…
main.c	ecryptfs: check for existing key_tfm at mount time	17 years ago
messaging.c	…
mmap.c	…
netlink.c	…
read_write.c	…
super.c	…