diff options
| author | Minchan Kim <minchan@kernel.org> | 2020-05-26 10:37:47 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2020-05-26 19:58:38 +1000 |
| commit | 06404f13bea6c6c46c7f1750acf94c7c3e782765 (patch) | |
| tree | 56200026ef19334e37153fd90339558043d7b9c9 /include | |
| parent | 680b5a882e89a994cad62fb7190e57318289ada2 (diff) | |
mm: return EBADF if pidfd is invalid
This patch makes returning of EBADF when the fd passed as argument is
invalid. The implementaion relies on pidfd_get_pid's error return.
This patch also fixes syscall declare part since we removed pid support.
Link: http://lkml.kernel.org/r/20200519181447.GA220547@google.com
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/compat.h | 6 | ||||
| -rw-r--r-- | include/linux/syscalls.h | 5 |
2 files changed, 5 insertions, 6 deletions
diff --git a/include/linux/compat.h b/include/linux/compat.h index 2e2f0a2700ab..86b61e873947 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -827,10 +827,10 @@ asmlinkage long compat_sys_pwritev64v2(unsigned long fd, unsigned long vlen, loff_t pos, rwf_t flags); #endif -asmlinkage ssize_t compat_sys_process_madvise(compat_int_t which, - compat_pid_t upid, const struct compat_iovec __user *vec, +asmlinkage ssize_t compat_sys_process_madvise(compat_int_t pidfd, + const struct compat_iovec __user *vec, compat_ulong_t vlen, compat_int_t behavior, - compat_ulong_t flags); + compat_int_t flags); /* * Deprecated system calls which are still defined in diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 2cbd3660e8e6..63ffa6dc9da3 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -879,9 +879,8 @@ asmlinkage long sys_munlockall(void); asmlinkage long sys_mincore(unsigned long start, size_t len, unsigned char __user * vec); asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); -asmlinkage long sys_process_madvise(int which, pid_t upid, - const struct iovec __user *vec, unsigned long vlen, - int behavior, unsigned long flags); +asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec, + unsigned long vlen, int behavior, unsigned int flags); asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, unsigned long prot, unsigned long pgoff, unsigned long flags); |