AcoSail/kernel_optimize_test
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untangling process_vm_..., part 3

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lift iov one more level out - from process_vm_rw_single_vec to
process_vm_rw_core().  Same story as with the previous commit.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-02-05 10:28:58 -05:00
parent c61c70384f
commit 12e3004e46
1 changed files with 3 additions and 4 deletions
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7
mm/process_vm_access.c
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@ -174,7 +174,7 @@ static int process_vm_rw_pages(struct task_struct *task,
*/
static int process_vm_rw_single_vec(unsigned long addr,
unsigned long len,
const struct iovec *lvec,
const struct iovec **iovp,
unsigned long lvec_cnt,
unsigned long *lvec_current,
size_t *lvec_offset,
@ -193,7 +193,6 @@ static int process_vm_rw_single_vec(unsigned long addr,
unsigned long nr_pages_to_copy;
unsigned long max_pages_per_loop = PVM_MAX_KMALLOC_PAGES
/ sizeof(struct pages *);
const struct iovec *iov = lvec + *lvec_current;
*bytes_copied = 0;
@ -208,7 +207,7 @@ static int process_vm_rw_single_vec(unsigned long addr,
rc = process_vm_rw_pages(task, mm, process_pages, pa,
start_offset, len,
&iov, lvec_cnt,
iovp, lvec_cnt,
lvec_current, lvec_offset,
vm_write, nr_pages_to_copy,
&bytes_copied_loop);
@ -319,7 +318,7 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
for (i = 0; i < riovcnt && iov_l_curr_idx < liovcnt; i++) {
rc = process_vm_rw_single_vec(
(unsigned long)rvec[i].iov_base, rvec[i].iov_len,
lvec, liovcnt, &iov_l_curr_idx, &iov_l_curr_offset,
&lvec, liovcnt, &iov_l_curr_idx, &iov_l_curr_offset,
process_pages, mm, task, vm_write, &bytes_copied_loop);
bytes_copied += bytes_copied_loop;
if (rc != 0) {