[CRIU] [RFC PATCH 14/16] criu: lazy-pages: add nr (of pages) parameter to handle_regular_pages
Mike Rapoport
rppt at linux.vnet.ibm.com
Tue Sep 27 06:42:15 PDT 2016
Signed-off-by: Mike Rapoport <rppt at linux.vnet.ibm.com>
---
criu/uffd.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/criu/uffd.c b/criu/uffd.c
index 83e36a1..d3ee128 100644
--- a/criu/uffd.c
+++ b/criu/uffd.c
@@ -559,13 +559,13 @@ static int uffd_zero(struct lazy_pages_info *lpi, __u64 address, int nr_pages)
return len;
}
-static int uffd_handle_page(struct lazy_pages_info *lpi, __u64 address)
+static int uffd_handle_pages(struct lazy_pages_info *lpi, __u64 address, int nr)
{
int rc;
- rc = uffd_copy(lpi, address, 1);
+ rc = uffd_copy(lpi, address, nr);
if (rc == 0)
- rc = uffd_zero(lpi, address, 1);
+ rc = uffd_zero(lpi, address, nr);
return rc;
}
@@ -585,7 +585,7 @@ static int handle_remaining_pages(struct lazy_pages_info *lpi)
for (i = 0; i < nr_pages; i++) {
addr = base + i * PAGE_SIZE;
- err = uffd_handle_page(lpi, addr);
+ err = uffd_handle_pages(lpi, addr, 1);
if (err < 0) {
pr_err("Error during UFFD copy\n");
return -1;
@@ -596,17 +596,18 @@ static int handle_remaining_pages(struct lazy_pages_info *lpi)
return 0;
}
-static int handle_regular_pages(struct lazy_pages_info *lpi, __u64 address)
+static int handle_regular_pages(struct lazy_pages_info *lpi, __u64 address,
+ int nr)
{
int rc;
- rc = uffd_handle_page(lpi, address);
+ rc = uffd_handle_pages(lpi, address, nr);
if (rc < 0) {
pr_err("Error during UFFD copy\n");
return -1;
}
- rc = update_lazy_iovecs(lpi, address, PAGE_SIZE);
+ rc = update_lazy_iovecs(lpi, address, PAGE_SIZE * nr);
if (rc < 0)
return -1;
@@ -643,7 +644,7 @@ static int handle_user_fault(struct lazy_pages_info *lpi)
return -1;
}
- ret = handle_regular_pages(lpi, address);
+ ret = handle_regular_pages(lpi, address, 1);
if (ret < 0) {
pr_err("Error during regular page copy\n");
return -1;
--
1.9.1
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