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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-07-24 12:36:56 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-07-24 12:36:56 -0700 |
| commit | b9f12a5d97f652c77ef6803dccd0d40d1290f5be (patch) | |
| tree | 8f58c8620ffef0d350a5ec022feda492a96b179a /mm/process_vm_access.c | |
| parent | 9d8dc3e529a19e427fd379118acd132520935c5d (diff) | |
| parent | 9a3c4145af32125c5ee39c0272662b47307a8323 (diff) | |
Merge tag 'v3.16-rc6' into next
Merge with mainline to bring in changes to MFD to allow merging
ipaq-micro-ts driver.
Diffstat (limited to 'mm/process_vm_access.c')
| -rw-r--r-- | mm/process_vm_access.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c index 8505c9262b3..5077afcd9e1 100644 --- a/mm/process_vm_access.c +++ b/mm/process_vm_access.c @@ -46,11 +46,7 @@ static int process_vm_rw_pages(struct page **pages, copy = len; if (vm_write) { - if (copy > iov_iter_count(iter)) - copy = iov_iter_count(iter); - copied = iov_iter_copy_from_user(page, iter, - offset, copy); - iov_iter_advance(iter, copied); + copied = copy_page_from_iter(page, offset, copy, iter); set_page_dirty_lock(page); } else { copied = copy_page_to_iter(page, offset, copy, iter); @@ -278,7 +274,7 @@ static ssize_t process_vm_rw(pid_t pid, if (rc <= 0) goto free_iovecs; - iov_iter_init(&iter, iov_l, liovcnt, rc, 0); + iov_iter_init(&iter, vm_write ? WRITE : READ, iov_l, liovcnt, rc); rc = rw_copy_check_uvector(CHECK_IOVEC_ONLY, rvec, riovcnt, UIO_FASTIOV, iovstack_r, &iov_r); @@ -341,7 +337,7 @@ compat_process_vm_rw(compat_pid_t pid, &iov_l); if (rc <= 0) goto free_iovecs; - iov_iter_init(&iter, iov_l, liovcnt, rc, 0); + iov_iter_init(&iter, vm_write ? WRITE : READ, iov_l, liovcnt, rc); rc = compat_rw_copy_check_uvector(CHECK_IOVEC_ONLY, rvec, riovcnt, UIO_FASTIOV, iovstack_r, &iov_r); |