Return the maximum amount of memory needed for block io.
Signed-off-by: Nigel Cunningham <[email protected]>
kernel/power/suspend_block_io.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/kernel/power/suspend_block_io.c b/kernel/power/suspend_block_io.c
index 555d4fa..6e0f22c 100644
--- a/kernel/power/suspend_block_io.c
+++ b/kernel/power/suspend_block_io.c
@@ -766,3 +766,12 @@ static int suspend_bdev_page_io(int rw,
return suspend_do_io(rw, &submit_info, 1);
}
+static unsigned long suspend_bio_memory_needed(void)
+{
+ /* We want to have at least enough memory so as to have
+ * MAX_OUTSTANDING_IO transactions on the fly at once. If we
+ * can to more, fine. */
+ return (MAX_OUTSTANDING_IO * (PAGE_SIZE + sizeof(struct request) +
+ sizeof(struct bio) + sizeof(struct io_info)));
+}
+
--
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]
