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Old 09-17-2012, 03:28 PM
Colin Ian King
 
Default ACK: Revert "UBUNTU: SAUCE: Improve Amazon EBS performance for EC2 -- fixes for v3.5-rc6"

On 17/09/12 16:26, Stefan Bader wrote:

This reverts commit be1d52ea78d9a08827fd0f2945e610d794ad718a as it
is not needed/used.

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
---
drivers/block/xen-blkfront.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 72edd45..43860d3 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -763,7 +763,6 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
unsigned long flags;
struct blkfront_info *info = (struct blkfront_info *)dev_id;
int error;
- int ring_size = __RING_SIZE((struct blkif_sring *)0, info->num_ring_pages * PAGE_SIZE);

spin_lock_irqsave(&info->io_lock, flags);

@@ -786,7 +785,7 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
* never have given to it (we stamp it up to BLK_RING_SIZE -
* look in get_id_from_freelist.
*/
- if (id >= ring_size) {
+ if (id >= BLK_RING_SIZE) {
WARN(1, "%s: response to %s has incorrect id (%ld)
",
info->gd->disk_name, op_name(bret->operation), id);
/* We can't safely get the 'struct request' as




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