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| author | Roger Pau Monne <roger.pau@citrix.com> | 2012-11-02 15:43:04 (GMT) |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-11-04 15:35:40 (GMT) |
| commit | cb5bd4d19b46c220b1ac8462a3da01767dd99488 (patch) | |
| tree | 1b22151771a90480d0d4790521b9432f46f1e32a /drivers/block/xen-blkback/xenbus.c | |
| parent | 0a8704a51f386cab7394e38ff1d66eef924d8ab8 (diff) | |
| download | linux-fsl-qoriq-cb5bd4d19b46c220b1ac8462a3da01767dd99488.tar.xz | |
xen/blkback: persistent-grants fixes
This patch contains fixes for persistent grants implementation v2:
* handle == 0 is a valid handle, so initialize grants in blkback
setting the handle to BLKBACK_INVALID_HANDLE instead of 0. Reported
by Konrad Rzeszutek Wilk.
* new_map is a boolean, use "true" or "false" instead of 1 and 0.
Reported by Konrad Rzeszutek Wilk.
* blkfront announces the persistent-grants feature as
feature-persistent-grants, use feature-persistent instead which is
consistent with blkback and the public Xen headers.
* Add a consistency check in blkfront to make sure we don't try to
access segments that have not been set.
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
[v1: The new_map int->bool had already been changed]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/block/xen-blkback/xenbus.c')
| -rw-r--r-- | drivers/block/xen-blkback/xenbus.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index b225026..a03ecbb 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -760,7 +760,7 @@ static int connect_ring(struct backend_info *be) return -1; } err = xenbus_gather(XBT_NIL, dev->otherend, - "feature-persistent-grants", "%u", + "feature-persistent", "%u", &pers_grants, NULL); if (err) pers_grants = 0; |