Displaying 6 results from an estimated 6 matches for "blk_ring_area".
2011 Apr 04
0
[PATCH] linux-2.6.18/backends: use xenbus_be.ko interfaces instead of open-coding them
...h>
static kmem_cache_t *blkif_cachep;
@@ -55,75 +55,39 @@ blkif_t *blkif_alloc(domid_t domid)
return blkif;
}
-static int map_frontend_page(blkif_t *blkif, unsigned long shared_page)
-{
- struct gnttab_map_grant_ref op;
- int ret;
-
- gnttab_set_map_op(&op, (unsigned long)blkif->blk_ring_area->addr,
- GNTMAP_host_map, shared_page, blkif->domid);
-
- gnttab_check_GNTST_eagain_do_while(GNTTABOP_map_grant_ref, &op);
-
- if (op.status == GNTST_okay) {
- blkif->shmem_ref = shared_page;
- blkif->shmem_handle = op.handle;
- ret = 0;
- } else {
- DPRINTK(" Grant tab...
2007 Jun 07
4
blkif_map error starting fourth guest domain
I''m having problems starting more than three domains. It sometimes
works fine, but more often than not the 4th domain''s root block device
times out and so the domU kernel panics as there''s no /dev/root:
XENBUS: Timeout connecting to device: device/vbd/2057 (state 6)
XENBUS: Timeout connecting to device: device/vif/0 (state 6)
XENBUS: Timeout connecting to device:
2011 Aug 15
6
[patch] xen-blkback: sync I/O after backend disconnected
...backend_changed(struct xenbus_watch *, const char **,
unsigned int);
+static void xen_vbd_sync(struct xen_vbd *vbd);
struct xenbus_device *xen_blkbk_xenbus(struct backend_info *be)
{
@@ -232,6 +233,7 @@ static void xen_blkif_disconnect(struct xen_blkif *blkif)
free_vm_area(blkif->blk_ring_area);
blkif->blk_rings.common.sring = NULL;
}
+ xen_vbd_sync(&blkif->vbd);
}
void xen_blkif_free(struct xen_blkif *blkif)
@@ -332,6 +334,12 @@ static void xen_vbd_free(struct xen_vbd *vbd)
vbd->bdev = NULL;
}
+static void xen_vbd_sync(struct xen_vbd *vbd)
+{
+ if (vbd->bde...
2011 Dec 01
11
[PATCH 0 of 2] Paging support updates for XCP dom0
This is a cherry pick of two patches that add support for guest paged out
frames in the XCP 2.6.32 dom0 patch queue.
First patch propagates the ENOENT returned by the hypervisor in the case
of a paged out page, all the way up the call chain to the MMAPBATCH_V2
ioctl. The ioctl is mainly used to harvest those return values and retry.
The second patch adds retry loops to all backend grant
2010 Sep 15
15
xenpaging fixes for kernel and hypervisor
Patrick,
there following patches fix xenpaging for me.
Granttable handling is incomplete. If a page is gone, a GNTST_eagain
should be returned to the caller to inidcate the hypercall has to be
retried after a while, until the page is available again.
Please review.
Olaf
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2011 Sep 01
9
[PATCH V4 0/3] xen-blkfront/blkback discard support
Dear list,
This is the V4 of the trim support for xen-blkfront/blkback,
Now we move BLKIF_OP_TRIM to BLKIF_OP_DISCARD, and dropped all
"trim" stuffs in the patches, and use "discard" instead.
Also we updated the helpers of blkif_x86_{32|64}_request or we
will meet problems using a non-native protocol.
And this patch has been tested with both SSD and raw file,
with SSD we will