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authorEric Biggers <ebiggers@google.com>2019-05-20 19:29:43 +0300
committerEric Biggers <ebiggers@google.com>2019-05-28 20:27:52 +0300
commit03569f2fb8e734f281379767de674e23c38b0b14 (patch)
tree13c222b83eaf83f30c2ae175c9f539033bec44a7 /net
parenteeacfdc68a104967162dfcba60f53f6f5b62a334 (diff)
downloadlinux-03569f2fb8e734f281379767de674e23c38b0b14.tar.xz
fscrypt: introduce fscrypt_encrypt_block_inplace()
fscrypt_encrypt_page() behaves very differently depending on whether the filesystem set FS_CFLG_OWN_PAGES in its fscrypt_operations. This makes the function difficult to understand and document. It also makes it so that all callers have to provide inode and lblk_num, when fscrypt could determine these itself for pagecache pages. Therefore, move the FS_CFLG_OWN_PAGES behavior into a new function fscrypt_encrypt_block_inplace(). This is in preparation for allowing encryption on ext4 filesystems with blocksize != PAGE_SIZE. Reviewed-by: Chandan Rajendra <chandan@linux.ibm.com> Signed-off-by: Eric Biggers <ebiggers@google.com>
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