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authorIngo Molnar <mingo@elte.hu>2009-01-27 12:01:51 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-27 12:01:51 +0100
commit3ddeb51d9c83931c1ca6abf76a38934c5a1ed918 (patch)
treefc2efb59d627135ea2199a8a68415b162646b121 /drivers/xen
parent5a611268b69f05262936dd177205acbce4471358 (diff)
parent5ee810072175042775e39bdd3eaaa68884c27805 (diff)
downloadop-kernel-dev-3ddeb51d9c83931c1ca6abf76a38934c5a1ed918.zip
op-kernel-dev-3ddeb51d9c83931c1ca6abf76a38934c5a1ed918.tar.gz
Merge branch 'linus' into core/percpu
Conflicts: arch/x86/kernel/setup_percpu.c
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/balloon.c8
-rw-r--r--drivers/xen/xenfs/xenbus.c11
2 files changed, 13 insertions, 6 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 8dc7109..2ba8f95 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -298,6 +298,14 @@ static int decrease_reservation(unsigned long nr_pages)
frame_list[i] = pfn_to_mfn(pfn);
scrub_page(page);
+
+ if (!PageHighMem(page)) {
+ ret = HYPERVISOR_update_va_mapping(
+ (unsigned long)__va(pfn << PAGE_SHIFT),
+ __pte_ma(0), 0);
+ BUG_ON(ret);
+ }
+
}
/* Ensure that ballooned highmem pages don't have kmaps. */
diff --git a/drivers/xen/xenfs/xenbus.c b/drivers/xen/xenfs/xenbus.c
index 875a4c5..a9592d9 100644
--- a/drivers/xen/xenfs/xenbus.c
+++ b/drivers/xen/xenfs/xenbus.c
@@ -291,7 +291,7 @@ static void watch_fired(struct xenbus_watch *watch,
static int xenbus_write_transaction(unsigned msg_type,
struct xenbus_file_priv *u)
{
- int rc, ret;
+ int rc;
void *reply;
struct xenbus_transaction_holder *trans = NULL;
LIST_HEAD(staging_q);
@@ -326,15 +326,14 @@ static int xenbus_write_transaction(unsigned msg_type,
}
mutex_lock(&u->reply_mutex);
- ret = queue_reply(&staging_q, &u->u.msg, sizeof(u->u.msg));
- if (!ret)
- ret = queue_reply(&staging_q, reply, u->u.msg.len);
- if (!ret) {
+ rc = queue_reply(&staging_q, &u->u.msg, sizeof(u->u.msg));
+ if (!rc)
+ rc = queue_reply(&staging_q, reply, u->u.msg.len);
+ if (!rc) {
list_splice_tail(&staging_q, &u->read_buffers);
wake_up(&u->read_waitq);
} else {
queue_cleanup(&staging_q);
- rc = ret;
}
mutex_unlock(&u->reply_mutex);
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