Displaying 11 results from an estimated 11 matches for "blkif_t".
2011 Apr 04
0
[PATCH] linux-2.6.18/backends: use xenbus_be.ko interfaces instead of open-coding them
...clude <xen/xenbus.h>
+#include <xen/interface/event_channel.h>
#include "blkback-pagemap.h"
@@ -93,9 +88,6 @@ typedef struct blkif_st {
int st_wr_sect;
wait_queue_head_t waiting_to_free;
-
- grant_handle_t shmem_handle;
- grant_ref_t shmem_ref;
} blkif_t;
struct backend_info
@@ -111,7 +103,7 @@ struct backend_info
blkif_t *blkif_alloc(domid_t domid);
void blkif_disconnect(blkif_t *blkif);
void blkif_free(blkif_t *blkif);
-int blkif_map(blkif_t *blkif, unsigned long shared_page, unsigned int evtchn);
+int blkif_map(blkif_t *blkif, grant_ref_t,...
2011 Jun 21
13
VM disk I/O limit patch
...\n", \
+ __FUNCTION__, __LINE__, ##args)
+
/*
* These are rather arbitrary. They are fairly large because adjacent requests
* pulled from a communication ring are quite likely to end up being part of
@@ -110,7 +115,8 @@ static inline unsigned long vaddr(pendin
static int do_block_io_op(blkif_t *blkif);
static int dispatch_rw_block_io(blkif_t *blkif,
blkif_request_t *req,
- pending_req_t *pending_req);
+ pending_req_t *pending_req,
+ int *done_nr_sects);
static void make_response(blkif_t *blkif, u64 id,
unsigned short op, int st);
@@ -206,10 +212,20 @@ static v...
2011 Jun 21
13
VM disk I/O limit patch
...\n", \
+ __FUNCTION__, __LINE__, ##args)
+
/*
* These are rather arbitrary. They are fairly large because adjacent requests
* pulled from a communication ring are quite likely to end up being part of
@@ -110,7 +115,8 @@ static inline unsigned long vaddr(pendin
static int do_block_io_op(blkif_t *blkif);
static int dispatch_rw_block_io(blkif_t *blkif,
blkif_request_t *req,
- pending_req_t *pending_req);
+ pending_req_t *pending_req,
+ int *done_nr_sects);
static void make_response(blkif_t *blkif, u64 id,
unsigned short op, int st);
@@ -206,10 +212,20 @@ static v...
2008 Nov 05
0
[PATCH] blktap: ensure vma->vm_mm''s mmap_sem is being held whenever it is being modified
...a(pending_req_
int tapidx)
{
struct gnttab_unmap_grant_ref unmap[BLKIF_MAX_SEGMENTS_PER_REQUEST*2];
- unsigned int i, invcount = 0;
+ unsigned int i, invcount = 0, locked = 0;
struct grant_handle_pair *khandle;
uint64_t ptep;
int ret, mmap_idx;
unsigned long kvaddr, uvaddr;
tap_blkif_t *info;
+ struct mm_struct *mm;
info = tapfds[tapidx];
@@ -1008,13 +1013,15 @@ static void fast_flush_area(pending_req_
return;
}
+ mm = info->vma ? info->vma->vm_mm : NULL;
+
if (info->vma != NULL &&
xen_feature(XENFEAT_auto_translated_physmap)) {
- down_w...
2011 May 25
2
[PATCH linux-2.6.18-xen] blkback: don''t call vbd_size() if bd_disk is NULL
...---
drivers/xen/blkback/vbd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -r 415a9b435fef drivers/xen/blkback/vbd.c
--- a/drivers/xen/blkback/vbd.c Mon May 23 18:36:33 2011 +0100
+++ b/drivers/xen/blkback/vbd.c Wed May 25 12:15:26 2011 +0200
@@ -73,7 +73,6 @@ int vbd_create(blkif_t *blkif, blkif_vde
}
vbd->bdev = bdev;
- vbd->size = vbd_size(vbd);
if (vbd->bdev->bd_disk == NULL) {
DPRINTK("vbd_creat: device %08x doesn''t exist.\n",
@@ -82,6 +81,8 @@ int vbd_create(blkif_t *blkif, blkif_vde
return -ENOENT;
}
+ vbd->size =...
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 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
2008 Mar 10
12
[RFC][PATCH] Use ioemu block drivers through blktap
When I submitted the qcow2 patch for blktap, suggestions came up that
the qemu block drivers should be used also for blktap to eliminate the
current code duplication in ioemu and blktap.
The attached patch adds support for a tap:ioemu pseudo driver. Devices
using this driver won''t use tapdisk (containing the code duplication)
any more, but will connect to the qemu-dm of the domain. In
2011 May 02
32
[PATCH] blkback: Fix block I/O latency issue
...The following change addresses this issue:
Signed-off-by: Pradeep Vincent <pradeepv@amazon.com>
diff --git a/drivers/xen/blkback/blkback.c b/drivers/xen/blkback/blkback.c
--- a/drivers/xen/blkback/blkback.c
+++ b/drivers/xen/blkback/blkback.c
@@ -383,6 +383,12 @@ static int do_block_io_op(blkif_t *blkif)
cond_resched();
}
+ /* If blkback might go to sleep (i.e. more_to_do == 0) then we better
+ let blkfront know about it (by setting req_event appropriately) so that
+ blkfront will bother to wake us up (via interrupt) when it submits a
+ new I/O */
+ if (!more_to_do)
+...
2012 Apr 02
23
[PATCH 00 of 18] [v2] tools: fix bugs and build errors triggered by -O2 -Wall -Werror
Changes:
tools/blktap: remove unneeded pointer dereferencing in convert_dev_name_to_num
tools/blktap: constify string arrays in convert_dev_name_to_num
tools/blktap: fix params and physical-device parsing
tools/blktap: remove unneeded pointer dereferencing from img2qcow.c
tools/blktap: remove unneeded pointer dereferencing from qcow2raw.c
tools/blktap2: fix build errors caused by Werror in
2011 Nov 17
29
[PATCH 00 of 17] Documentation updates
The following series flushes my documentation queue and replaces
previous postings of those patches.
The main difference is that the xl cfg file is now formatted using POD
instead of markdown and presented as a manpage.
I have setup a cron job to build docs/html and publish it at
http://xenbits.xen.org/docs/unstable/ (it''s a bit bare right now).
The motivation for some of these patches