Given the (previously allocated) swap entries, get the sectors for each
device to which we'll be writing the image.
Signed-off-by: Nigel Cunningham <[email protected]>
kernel/power/suspend_swap.c | 58 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 58 insertions(+), 0 deletions(-)
diff --git a/kernel/power/suspend_swap.c b/kernel/power/suspend_swap.c
index 8e4221d..af6640f 100644
--- a/kernel/power/suspend_swap.c
+++ b/kernel/power/suspend_swap.c
@@ -360,3 +360,61 @@ static int swapwriter_allocate_header_sp
return 0;
}
+static void get_main_pool_phys_params(void)
+{
+ struct extent *extentpointer = NULL;
+ unsigned long address;
+ int i, extent_min = -1, extent_max = -1, last_chain = -1;
+ int prev_header_pages_allocated;
+
+ for (i = 0; i < MAX_SWAPFILES; i++)
+ if (block_chain[i].first)
+ suspend_put_extent_chain(&block_chain[i]);
+
+ suspend_extent_for_each(&swapextents, extentpointer, address) {
+ swp_entry_t swap_address = extent_val_to_swap_entry(address);
+ pgoff_t offset = swp_offset(swap_address);
+ unsigned swapfilenum = swp_type(swap_address);
+ struct swap_info_struct *sis = get_swap_info_struct(swapfilenum);
+ sector_t new_sector = map_swap_page(sis, offset);
+
+ if ((new_sector == extent_max + 1) &&
+ (last_chain == swapfilenum))
+ extent_max++;
+ else {
+ if (extent_min > -1) {
+ if (test_action_state(SUSPEND_TEST_BIO))
+ printk("Adding extent chain %d %d-%d.\n",
+ swapfilenum,
+ extent_min <<
+ devinfo[last_chain].bmap_shift,
+ extent_max <<
+ devinfo[last_chain].bmap_shift);
+
+ suspend_add_to_extent_chain(
+ &block_chain[last_chain],
+ extent_min, extent_max);
+ }
+ extent_min = extent_max = new_sector;
+ last_chain = swapfilenum;
+ }
+ }
+
+ if (extent_min > -1) {
+ if (test_action_state(SUSPEND_TEST_BIO))
+ printk("Adding extent chain %d %d-%d.\n",
+ last_chain,
+ extent_min <<
+ devinfo[last_chain].bmap_shift,
+ extent_max <<
+ devinfo[last_chain].bmap_shift);
+ suspend_add_to_extent_chain(
+ &block_chain[last_chain],
+ extent_min, extent_max);
+ }
+
+ prev_header_pages_allocated = header_pages_allocated;
+ header_pages_allocated = 0;
+ swapwriter_allocate_header_space(prev_header_pages_allocated);
+}
+
--
Nigel Cunningham nigel at suspend2 dot net
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
