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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-26 09:47:28 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-26 09:47:28 -0800
commit810ee58de26c9c1255d716b1db7344c4a1093fec (patch)
tree176531e4e4989ec7a8996a356b1a79ae7b647568 /drivers
parent2927fceafc91afe744e0d1d33f8bbf98c42668fc (diff)
parente88a0faae5baaaa3bdc6f23a55ad6bc7a7b4aa77 (diff)
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (29 commits) xen: unitialised return value in xenbus_write_transaction x86: fix section mismatch warning x86: unmask CPUID levels on Intel CPUs, fix x86: work around PAGE_KERNEL_WC not getting WC in iomap_atomic_prot_pfn. x86: use standard PIT frequency xen: handle highmem pages correctly when shrinking a domain x86, mm: fix pte_free() xen: actually release memory when shrinking domain x86: unmask CPUID levels on Intel CPUs x86: add MSR_IA32_MISC_ENABLE bits to <asm/msr-index.h> x86: fix PTE corruption issue while mapping RAM using /dev/mem x86: mtrr fix debug boot parameter x86: fix page attribute corruption with cpa() Revert "x86: signal: change type of paramter for sys_rt_sigreturn()" x86: use early clobbers in usercopy*.c x86: remove kernel_physical_mapping_init() from init section fix: crash: IP: __bitmap_intersects+0x48/0x73 cpufreq: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write work_on_cpu: Use our own workqueue. work_on_cpu: don't try to get_online_cpus() in work_on_cpu. ...
Diffstat (limited to 'drivers')
-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 8dc7109d61b..2ba8f95516a 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 875a4c59c59..a9592d981b1 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);