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jffs2: pass the correct prototype to read_cache_page

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Fix the callback jffs2 passes to read_cache_page to actually have the
proper type expected.  Casting around function pointers can easily hide
typing bugs, and defeats control flow protection.

Link: http://lkml.kernel.org/r/20190520055731.24538-4-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig
2019-07-11 20:55:23 -07:00
committed by Linus Torvalds
parent 6c45b45419
commit 265de8ce3d
3 changed files with 4 additions and 4 deletions
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2
fs/jffs2/os-linux.h
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@ -155,7 +155,7 @@ extern const struct file_operations jffs2_file_operations;
extern const struct inode_operations jffs2_file_inode_operations;
extern const struct address_space_operations jffs2_file_address_operations;
int jffs2_fsync(struct file *, loff_t, loff_t, int);
int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
int jffs2_do_readpage_unlock(void *data, struct page *pg);
/* ioctl.c */
long jffs2_ioctl(struct file *, unsigned int, unsigned long);