diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-09-25 06:51:41 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-10-03 00:02:13 -0400 |
| commit | 89cd35c58bc2e36bfdc23dde67a429b08cf4ae03 (patch) | |
| tree | 540a413bab63b20e24dba2dece0044277bb778a1 /mm/process_vm_access.c | |
| parent | bfdc59701d6d100c99c3b987bcffd1c204e393c8 (diff) | |
iov_iter: transparently handle compat iovecs in import_iovec
Use in compat_syscall to import either native or the compat iovecs, and
remove the now superflous compat_import_iovec.
This removes the need for special compat logic in most callers, and
the remaining ones can still be simplified by using __import_iovec
with a bool compat parameter.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm/process_vm_access.c')
| -rw-r--r-- | mm/process_vm_access.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c index 5e728c20c2be..3f2156aab442 100644 --- a/mm/process_vm_access.c +++ b/mm/process_vm_access.c @@ -326,7 +326,8 @@ compat_process_vm_rw(compat_pid_t pid, if (flags != 0) return -EINVAL; - rc = compat_import_iovec(dir, lvec, liovcnt, UIO_FASTIOV, &iov_l, &iter); + rc = import_iovec(dir, (const struct iovec __user *)lvec, liovcnt, + UIO_FASTIOV, &iov_l, &iter); if (rc < 0) return rc; if (!iov_iter_count(&iter)) |