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authorLinus Torvalds <torvalds@linux-foundation.org>2020-07-10 09:45:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-07-10 09:45:15 -0700
commitb1b11d0063aab28aaf65f63cff56470bc01dc290 (patch)
tree11c80d3317990b4bc7d1128c63fc63f444deca3b /include
parent1bfde037425d91d1d615d30ec362f5f5c1ca0dd2 (diff)
parent775802c0571fb438cd4f6548a323f9e4cb89f5aa (diff)
downloadlinux-b1b11d0063aab28aaf65f63cff56470bc01dc290.tar.bz2
Merge tag 'cleanup-kernel_read_write' of git://git.infradead.org/users/hch/misc
Pull in-kernel read and write op cleanups from Christoph Hellwig: "Cleanup in-kernel read and write operations Reshuffle the (__)kernel_read and (__)kernel_write helpers, and ensure all users of in-kernel file I/O use them if they don't use iov_iter based methods already. The new WARN_ONs in combination with syzcaller already found a missing input validation in 9p. The fix should be on your way through the maintainer ASAP". [ This is prep-work for the real changes coming 5.9 ] * tag 'cleanup-kernel_read_write' of git://git.infradead.org/users/hch/misc: fs: remove __vfs_read fs: implement kernel_read using __kernel_read integrity/ima: switch to using __kernel_read fs: add a __kernel_read helper fs: remove __vfs_write fs: implement kernel_write using __kernel_write fs: check FMODE_WRITE in __kernel_write fs: unexport __kernel_write bpfilter: switch to kernel_write autofs: switch to kernel_write cachefiles: switch to kernel_write
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 4b7cb76e5837..f5abba86107d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1918,7 +1918,6 @@ ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
struct iovec *fast_pointer,
struct iovec **ret_pointer);
-extern ssize_t __vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
@@ -3034,6 +3033,7 @@ extern int kernel_read_file_from_path_initns(const char *, void **, loff_t *, lo
extern int kernel_read_file_from_fd(int, void **, loff_t *, loff_t,
enum kernel_read_file_id);
extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
+ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos);
extern ssize_t kernel_write(struct file *, const void *, size_t, loff_t *);
extern ssize_t __kernel_write(struct file *, const void *, size_t, loff_t *);
extern struct file * open_exec(const char *);