Displaying 20 results from an estimated 43 matches for "blk_shadow".
2013 Feb 28
0
[PATCH RFC 05/12] xen-blkfront: remove frame list from blk_shadow
...block/xen-blkfront.c | 6 +-----
1 files changed, 1 insertions(+), 5 deletions(-)
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 5ba6b87..4d81fcc 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -74,7 +74,6 @@ struct grant {
struct blk_shadow {
struct blkif_request req;
struct request *request;
- unsigned long frame[BLKIF_MAX_SEGMENTS_PER_REQUEST];
struct grant *grants_used[BLKIF_MAX_SEGMENTS_PER_REQUEST];
};
@@ -356,7 +355,6 @@ static int blkif_ioctl(struct block_device *bdev, fmode_t mode,
static int blkif_queue_request(stru...
2012 Nov 02
2
[PATCH] xen-blk: persistent-grants fixes
...quot;,
&pers_grants, NULL);
if (err)
pers_grants = 0;
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 911d733..f1de806 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -852,6 +852,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
rq_for_each_segment(bvec, s->request, iter) {
BUG_ON((bvec->bv_offset + bvec->bv_len) > PAGE_SIZE);
i = offset >> PAGE_SHIFT;
+ BUG_ON(i >= s->req.u.rw.nr_segments);
shared_data = kmap_atomic(
pfn_to_page(s->grants_use...
2012 Mar 05
11
[PATCH 0001/001] xen: multi page ring support for block devices
...n/hypervisor.h>
+static int xen_blkif_ring_order;
+module_param_named(reqs, xen_blkif_ring_order, int, 0);
+MODULE_PARM_DESC(reqs, "log2 of requested ring size, in pages.");
+
enum blkif_state {
BLKIF_STATE_DISCONNECTED,
BLKIF_STATE_CONNECTED,
@@ -72,7 +76,8 @@ struct blk_shadow {
static DEFINE_MUTEX(blkfront_mutex);
static const struct block_device_operations xlvbd_block_fops;
-#define BLK_RING_SIZE __CONST_RING_SIZE(blkif, PAGE_SIZE)
+#define BLK_RING_SIZE(_order) __CONST_RING_SIZE(blkif, PAGE_SIZE << (_order))
+#define BLK_MAX_RING_SIZE BLK_RING_SIZE(XENB...
2012 Mar 05
11
[PATCH 0001/001] xen: multi page ring support for block devices
...n/hypervisor.h>
+static int xen_blkif_ring_order;
+module_param_named(reqs, xen_blkif_ring_order, int, 0);
+MODULE_PARM_DESC(reqs, "log2 of requested ring size, in pages.");
+
enum blkif_state {
BLKIF_STATE_DISCONNECTED,
BLKIF_STATE_CONNECTED,
@@ -72,7 +76,8 @@ struct blk_shadow {
static DEFINE_MUTEX(blkfront_mutex);
static const struct block_device_operations xlvbd_block_fops;
-#define BLK_RING_SIZE __CONST_RING_SIZE(blkif, PAGE_SIZE)
+#define BLK_RING_SIZE(_order) __CONST_RING_SIZE(blkif, PAGE_SIZE << (_order))
+#define BLK_MAX_RING_SIZE BLK_RING_SIZE(XENB...
2012 Mar 05
11
[PATCH 0001/001] xen: multi page ring support for block devices
...n/hypervisor.h>
+static int xen_blkif_ring_order;
+module_param_named(reqs, xen_blkif_ring_order, int, 0);
+MODULE_PARM_DESC(reqs, "log2 of requested ring size, in pages.");
+
enum blkif_state {
BLKIF_STATE_DISCONNECTED,
BLKIF_STATE_CONNECTED,
@@ -72,7 +76,8 @@ struct blk_shadow {
static DEFINE_MUTEX(blkfront_mutex);
static const struct block_device_operations xlvbd_block_fops;
-#define BLK_RING_SIZE __CONST_RING_SIZE(blkif, PAGE_SIZE)
+#define BLK_RING_SIZE(_order) __CONST_RING_SIZE(blkif, PAGE_SIZE << (_order))
+#define BLK_MAX_RING_SIZE BLK_RING_SIZE(XENB...
2012 Sep 19
27
[PATCH] Persistent grant maps for xen blk drivers
...ts);
/* Map the shared frame, irq etc. */
err = xen_blkif_map(be->blkif, ring_ref, evtchn);
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index e4fb337..c1cc5fe 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -68,6 +68,13 @@ struct blk_shadow {
struct blkif_request req;
struct request *request;
unsigned long frame[BLKIF_MAX_SEGMENTS_PER_REQUEST];
+ struct gnt_list *grants_used[BLKIF_MAX_SEGMENTS_PER_REQUEST];
+};
+
+struct gnt_list {
+ grant_ref_t gref;
+ unsigned long frame;
+ struct gnt_list *tail;
};
static DEFINE_MUTEX(blk...
2011 Sep 09
7
[PATCH] xen-blk[front|back] FUA additions.
I am proposing these two patches for 3.2. They allow the backend
to process the REQ_FUA request as well. Previous to these patches
it only did REQ_FLUSH. There is also a bug-fix for the logic
of how barrier/flushes were handled.
The patches are based on a branch which also has ''feature-discard''
patches, so they won''t apply nativly on top of 3.1-rc5.
Please review and
2012 Dec 06
3
LVM Checksum error when using persistent grants (#linux-next + stable/for-jens-3.8)
Hey Roger,
I am seeing this weird behavior when using #linux-next + stable/for-jens-3.8 tree.
Basically I can do ''pvscan'' on xvd* disk and quite often I get checksum errors:
# pvscan /dev/xvdf
PV /dev/xvdf2 VG VolGroup00 lvm2 [18.88 GiB / 0 free]
PV /dev/dm-14 VG vg_x86_64-pvhvm lvm2 [4.00 GiB / 68.00 MiB free]
PV /dev/dm-12 VG vg_i386-pvhvm lvm2
2013 Mar 27
0
[PATCH 04/22] block: Convert bio_for_each_segment() to bvec_iter
..._page,
bv_off, cb, cb_data);
if (st)
goto bvec_err;
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index c3dae2e..ce5d5ad 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -844,7 +844,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
struct blkif_response *bret)
{
int i = 0;
- struct bio_vec *bvec;
+ struct bio_vec bvec;
struct req_iterator iter;
unsigned long flags;
char *bvec_data;
@@ -859,18 +859,18 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *i...
2013 Mar 27
0
[PATCH 04/22] block: Convert bio_for_each_segment() to bvec_iter
..._page,
bv_off, cb, cb_data);
if (st)
goto bvec_err;
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index c3dae2e..ce5d5ad 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -844,7 +844,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
struct blkif_response *bret)
{
int i = 0;
- struct bio_vec *bvec;
+ struct bio_vec bvec;
struct req_iterator iter;
unsigned long flags;
char *bvec_data;
@@ -859,18 +859,18 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *i...
2013 Jun 09
0
[PATCH 06/26] block: Convert bio_for_each_segment() to bvec_iter
..._page,
bv_off, cb, cb_data);
if (st)
goto bvec_err;
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index d89ef86..eed3987 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -867,7 +867,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
struct blkif_response *bret)
{
int i = 0;
- struct bio_vec *bvec;
+ struct bio_vec bvec;
struct req_iterator iter;
unsigned long flags;
char *bvec_data;
@@ -882,18 +882,18 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *i...
2013 Jun 09
0
[PATCH 06/26] block: Convert bio_for_each_segment() to bvec_iter
..._page,
bv_off, cb, cb_data);
if (st)
goto bvec_err;
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index d89ef86..eed3987 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -867,7 +867,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
struct blkif_response *bret)
{
int i = 0;
- struct bio_vec *bvec;
+ struct bio_vec bvec;
struct req_iterator iter;
unsigned long flags;
char *bvec_data;
@@ -882,18 +882,18 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *i...
2013 Jun 09
0
[PATCH 06/26] block: Convert bio_for_each_segment() to bvec_iter
..._page,
bv_off, cb, cb_data);
if (st)
goto bvec_err;
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index d89ef86..eed3987 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -867,7 +867,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
struct blkif_response *bret)
{
int i = 0;
- struct bio_vec *bvec;
+ struct bio_vec bvec;
struct req_iterator iter;
unsigned long flags;
char *bvec_data;
@@ -882,18 +882,18 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *i...
2007 Apr 18
33
[RFC PATCH 00/33] Xen i386 paravirtualization support
Unlike full virtualization in which the virtual machine provides
the same platform interface as running natively on the hardware,
paravirtualization requires modification to the guest operating system
to work with the platform interface provided by the hypervisor.
Xen was designed with performance in mind. Calls to the hypervisor
are minimized, batched if necessary, and non-critical codepaths
2007 Apr 18
20
[patch 00/20] XEN-paravirt: Xen guest implementation for paravirt_ops interface
This patch series implements the Linux Xen guest in terms of the
paravirt-ops interface. The features in implemented this patch series
are:
* domU only
* UP only (most code is SMP-safe, but there's no way to create a new vcpu)
* writable pagetables, with late pinning/early unpinning
(no shadow pagetable support)
* supports both PAE and non-PAE modes
* xen console
* virtual block
2007 Apr 18
20
[patch 00/20] XEN-paravirt: Xen guest implementation for paravirt_ops interface
This patch series implements the Linux Xen guest in terms of the
paravirt-ops interface. The features in implemented this patch series
are:
* domU only
* UP only (most code is SMP-safe, but there's no way to create a new vcpu)
* writable pagetables, with late pinning/early unpinning
(no shadow pagetable support)
* supports both PAE and non-PAE modes
* xen console
* virtual block
2007 Apr 18
20
[patch 00/20] XEN-paravirt: Xen guest implementation for paravirt_ops interface
This patch series implements the Linux Xen guest in terms of the
paravirt-ops interface. The features in implemented this patch series
are:
* domU only
* UP only (most code is SMP-safe, but there's no way to create a new vcpu)
* writable pagetables, with late pinning/early unpinning
(no shadow pagetable support)
* supports both PAE and non-PAE modes
* xen console
* virtual block
2007 Apr 18
24
[patch 00/24] Xen-paravirt_ops: Xen guest implementation for paravirt_ops interface
Hi Andi,
This patch series implements the Linux Xen guest as a paravirt_ops
backend. The features in implemented this patch series are:
* domU only
* UP only (most code is SMP-safe, but there's no way to create a new vcpu)
* writable pagetables, with late pinning/early unpinning
(no shadow pagetable support)
* supports both PAE and non-PAE modes
* xen hvc console (console=hvc0)
*
2007 Apr 18
24
[patch 00/24] Xen-paravirt_ops: Xen guest implementation for paravirt_ops interface
Hi Andi,
This patch series implements the Linux Xen guest as a paravirt_ops
backend. The features in implemented this patch series are:
* domU only
* UP only (most code is SMP-safe, but there's no way to create a new vcpu)
* writable pagetables, with late pinning/early unpinning
(no shadow pagetable support)
* supports both PAE and non-PAE modes
* xen hvc console (console=hvc0)
*
2007 Apr 18
24
[patch 00/24] Xen-paravirt_ops: Xen guest implementation for paravirt_ops interface
Hi Andi,
This patch series implements the Linux Xen guest as a paravirt_ops
backend. The features in implemented this patch series are:
* domU only
* UP only (most code is SMP-safe, but there's no way to create a new vcpu)
* writable pagetables, with late pinning/early unpinning
(no shadow pagetable support)
* supports both PAE and non-PAE modes
* xen hvc console (console=hvc0)
*