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-rw-r--r--mm/process_vm_access.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 7b8d63e6c30b..186ec5db6090 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -45,7 +45,7 @@ static int process_vm_rw_pages(struct task_struct *task,
unsigned long pa,
unsigned long start_offset,
unsigned long len,
- const struct iovec *lvec,
+ const struct iovec **iovp,
unsigned long lvec_cnt,
unsigned long *lvec_current,
size_t *lvec_offset,
@@ -60,7 +60,7 @@ static int process_vm_rw_pages(struct task_struct *task,
int ret;
ssize_t bytes_to_copy;
ssize_t rc = 0;
- const struct iovec *iov = lvec + *lvec_current;
+ const struct iovec *iov = *iovp;
*bytes_copied = 0;
@@ -149,6 +149,7 @@ end:
put_page(process_pages[j]);
}
+ *iovp = iov;
return rc;
}
@@ -192,6 +193,7 @@ 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;
@@ -206,7 +208,7 @@ static int process_vm_rw_single_vec(unsigned long addr,
rc = process_vm_rw_pages(task, mm, process_pages, pa,
start_offset, len,
- lvec, lvec_cnt,
+ &iov, lvec_cnt,
lvec_current, lvec_offset,
vm_write, nr_pages_to_copy,
&bytes_copied_loop);