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authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-15 04:23:23 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-15 04:23:23 +0300
commitb7cef0d21c379669c9f620c9692b5c7c885a6311 (patch)
tree170f75d07d3c536680887c1c1abd277df431269a /fs/ubifs/crypto.c
parent91080ab38f3eaa2a0af4888220d007698a2e7b03 (diff)
parent669d204469c46e91d99da24914130f78277a71d3 (diff)
downloadlinux-b7cef0d21c379669c9f620c9692b5c7c885a6311.tar.xz
Merge tag 'for-linus-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull UBI and UBIFS updates from Richard Weinberger: "UBI: - Use bitmap API to allocate bitmaps - New attach mode, disable_fm, to attach without fastmap - Fixes for various typos in comments UBIFS: - Fix for a deadlock when setting xattrs for encrypted file - Fix for an assertion failures when truncating encrypted files - Fixes for various typos in comments" * tag 'for-linus-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs: ubi: fastmap: Add fastmap control support for 'UBI_IOCATT' ioctl ubi: fastmap: Use the bitmap API to allocate bitmaps ubifs: Fix AA deadlock when setting xattr for encrypted file ubifs: Fix UBIFS ro fail due to truncate in the encrypted directory mtd: ubi: drop unexpected word 'a' in comments ubi: block: Fix typos in comments ubi: fastmap: Fix typo in comments ubi: Fix repeated words in comments ubi: ubi-media.h: Fix comment typo ubi: block: Remove in vain semicolon ubifs: Fix ubifs_check_dir_empty() kernel-doc comment
Diffstat (limited to 'fs/ubifs/crypto.c')
-rw-r--r--fs/ubifs/crypto.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/ubifs/crypto.c b/fs/ubifs/crypto.c
index c57b46a352d8..3125e76376ee 100644
--- a/fs/ubifs/crypto.c
+++ b/fs/ubifs/crypto.c
@@ -24,6 +24,17 @@ static bool ubifs_crypt_empty_dir(struct inode *inode)
return ubifs_check_dir_empty(inode) == 0;
}
+/**
+ * ubifs_encrypt - Encrypt data.
+ * @inode: inode which refers to the data node
+ * @dn: data node to encrypt
+ * @in_len: length of data to be compressed
+ * @out_len: allocated memory size for the data area of @dn
+ * @block: logical block number of the block
+ *
+ * This function encrypt a possibly-compressed data in the data node.
+ * The encrypted data length will store in @out_len.
+ */
int ubifs_encrypt(const struct inode *inode, struct ubifs_data_node *dn,
unsigned int in_len, unsigned int *out_len, int block)
{