From f64e02fe9bc6a359cab95632b33900094d225ae1 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 8 Apr 2015 00:00:32 -0400 Subject: ext4 crypto: add ext4_mpage_readpages() This takes code from fs/mpage.c and optimizes it for ext4. Its primary reason is to allow us to more easily add encryption to ext4's read path in an efficient manner. Signed-off-by: Theodore Ts'o --- fs/ext4/ext4.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'fs/ext4/ext4.h') diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index f63c3d5805c4..f7f3f5871796 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2699,6 +2699,10 @@ static inline void ext4_set_de_type(struct super_block *sb, de->file_type = ext4_type_by_mode[(mode & S_IFMT)>>S_SHIFT]; } +/* readpages.c */ +extern int ext4_mpage_readpages(struct address_space *mapping, + struct list_head *pages, struct page *page, + unsigned nr_pages); /* symlink.c */ extern const struct inode_operations ext4_symlink_inode_operations; -- cgit v1.2.3