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Revert "mm: remove compat_process_vm_{readv,writev}"

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This reverts commit c3973b401e.

Bug: 171539436
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I050b6767cbb0a958ebf3cc7e3475e552deee4048
This commit is contained in:
Greg Kroah-Hartman
2020-10-23 10:18:50 +02:00
parent 4cfe64ac4c
commit 61e719d64f
17 changed files with 109 additions and 30 deletions
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8
include/linux/compat.h
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@@ -780,6 +780,14 @@ asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
int flags);
asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
unsigned vlen, unsigned int flags);
asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
const struct compat_iovec __user *lvec,
compat_ulong_t liovcnt, const struct compat_iovec __user *rvec,
compat_ulong_t riovcnt, compat_ulong_t flags);
asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
const struct compat_iovec __user *lvec,
compat_ulong_t liovcnt, const struct compat_iovec __user *rvec,
compat_ulong_t riovcnt, compat_ulong_t flags);
asmlinkage long compat_sys_execveat(int dfd, const char __user *filename,
const compat_uptr_t __user *argv,
const compat_uptr_t __user *envp, int flags);