--- /dev/null
+From f51e1eb63d9c28cec188337ee656a13be6980cfd Mon Sep 17 00:00:00 2001
+From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
+Date: Mon, 1 Jul 2013 00:40:55 +0200
+Subject: cpufreq: Fix cpufreq regression after suspend/resume
+
+From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
+
+commit f51e1eb63d9c28cec188337ee656a13be6980cfd upstream.
+
+Toralf Förster reported that the cpufreq ondemand governor behaves erratically
+(doesn't scale well) after a suspend/resume cycle. The problem was that the
+cpufreq subsystem's idea of the cpu frequencies differed from the actual
+frequencies set in the hardware after a suspend/resume cycle. Toralf bisected
+the problem to commit a66b2e5 (cpufreq: Preserve sysfs files across
+suspend/resume).
+
+Among other (harmless) things, that commit skipped the call to
+cpufreq_update_policy() in the resume path. But cpufreq_update_policy() plays
+an important role during resume, because it is responsible for checking if
+the BIOS changed the cpu frequencies behind our back and resynchronize the
+cpufreq subsystem's knowledge of the cpu frequencies, and update them
+accordingly.
+
+So, restore the call to cpufreq_update_policy() in the resume path to fix
+the cpufreq regression.
+
+Reported-and-tested-by: Toralf Förster <toralf.foerster@gmx.de>
+Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/cpufreq/cpufreq_stats.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/cpufreq/cpufreq_stats.c
++++ b/drivers/cpufreq/cpufreq_stats.c
+@@ -349,6 +349,7 @@ static int __cpuinit cpufreq_stat_cpu_ca
+
+ switch (action) {
+ case CPU_ONLINE:
++ case CPU_ONLINE_FROZEN:
+ cpufreq_update_policy(cpu);
+ break;
+ case CPU_DOWN_PREPARE:
--- /dev/null
+From 03617c188f41eeeb4223c919ee7e66e5a114f2c6 Mon Sep 17 00:00:00 2001
+From: Gleb Natapov <gleb@redhat.com>
+Date: Fri, 28 Jun 2013 13:17:18 +0300
+Subject: KVM: VMX: mark unusable segment as nonpresent
+
+From: Gleb Natapov <gleb@redhat.com>
+
+commit 03617c188f41eeeb4223c919ee7e66e5a114f2c6 upstream.
+
+Some userspaces do not preserve unusable property. Since usable
+segment has to be present according to VMX spec we can use present
+property to amend userspace bug by making unusable segment always
+nonpresent. vmx_segment_access_rights() already marks nonpresent segment
+as unusable.
+
+Reported-by: Stefan Pietsch <stefan.pietsch@lsexperts.de>
+Tested-by: Stefan Pietsch <stefan.pietsch@lsexperts.de>
+Signed-off-by: Gleb Natapov <gleb@redhat.com>
+Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/x86/kvm/vmx.c | 11 +++++++++--
+ 1 file changed, 9 insertions(+), 2 deletions(-)
+
+--- a/arch/x86/kvm/vmx.c
++++ b/arch/x86/kvm/vmx.c
+@@ -3399,15 +3399,22 @@ static void vmx_get_segment(struct kvm_v
+ var->limit = vmx_read_guest_seg_limit(vmx, seg);
+ var->selector = vmx_read_guest_seg_selector(vmx, seg);
+ ar = vmx_read_guest_seg_ar(vmx, seg);
++ var->unusable = (ar >> 16) & 1;
+ var->type = ar & 15;
+ var->s = (ar >> 4) & 1;
+ var->dpl = (ar >> 5) & 3;
+- var->present = (ar >> 7) & 1;
++ /*
++ * Some userspaces do not preserve unusable property. Since usable
++ * segment has to be present according to VMX spec we can use present
++ * property to amend userspace bug by making unusable segment always
++ * nonpresent. vmx_segment_access_rights() already marks nonpresent
++ * segment as unusable.
++ */
++ var->present = !var->unusable;
+ var->avl = (ar >> 12) & 1;
+ var->l = (ar >> 13) & 1;
+ var->db = (ar >> 14) & 1;
+ var->g = (ar >> 15) & 1;
+- var->unusable = (ar >> 16) & 1;
+ }
+
+ static u64 vmx_get_segment_base(struct kvm_vcpu *vcpu, int seg)
--- /dev/null
+From 247500820ebd02ad87525db5d9b199e5b66f6636 Mon Sep 17 00:00:00 2001
+From: "J. Bruce Fields" <bfields@redhat.com>
+Date: Fri, 21 Jun 2013 11:48:11 -0400
+Subject: nfsd4: fix decoding of compounds across page boundaries
+
+From: "J. Bruce Fields" <bfields@redhat.com>
+
+commit 247500820ebd02ad87525db5d9b199e5b66f6636 upstream.
+
+A freebsd NFSv4.0 client was getting rare IO errors expanding a tarball.
+A network trace showed the server returning BAD_XDR on the final getattr
+of a getattr+write+getattr compound. The final getattr started on a
+page boundary.
+
+I believe the Linux client ignores errors on the post-write getattr, and
+that that's why we haven't seen this before.
+
+Reported-by: Rick Macklem <rmacklem@uoguelph.ca>
+Signed-off-by: J. Bruce Fields <bfields@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ fs/nfsd/nfs4xdr.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/fs/nfsd/nfs4xdr.c
++++ b/fs/nfsd/nfs4xdr.c
+@@ -162,8 +162,8 @@ static __be32 *read_buf(struct nfsd4_com
+ */
+ memcpy(p, argp->p, avail);
+ /* step to next page */
+- argp->p = page_address(argp->pagelist[0]);
+ argp->pagelist++;
++ argp->p = page_address(argp->pagelist[0]);
+ if (argp->pagelen < PAGE_SIZE) {
+ argp->end = argp->p + (argp->pagelen>>2);
+ argp->pagelen = 0;
--- /dev/null
+From 62f288a02f97bd9f6b2361a6fff709729fe9e110 Mon Sep 17 00:00:00 2001
+From: Andy Adamson <andros@netapp.com>
+Date: Wed, 19 Jun 2013 16:39:44 -0400
+Subject: NFSv4.1 end back channel session draining
+
+From: Andy Adamson <andros@netapp.com>
+
+commit 62f288a02f97bd9f6b2361a6fff709729fe9e110 upstream.
+
+We need to ensure that we clear NFS4_SLOT_TBL_DRAINING on the back
+channel when we're done recovering the session.
+
+Regression introduced by commit 774d5f14e (NFSv4.1 Fix a pNFS session
+draining deadlock)
+
+Signed-off-by: Andy Adamson <andros@netapp.com>
+[Trond: Changed order to start back-channel first. Minor code cleanup]
+Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ fs/nfs/nfs4state.c | 23 +++++++++++------------
+ 1 file changed, 11 insertions(+), 12 deletions(-)
+
+--- a/fs/nfs/nfs4state.c
++++ b/fs/nfs/nfs4state.c
+@@ -228,19 +228,8 @@ static int nfs41_setup_state_renewal(str
+ return status;
+ }
+
+-/*
+- * Back channel returns NFS4ERR_DELAY for new requests when
+- * NFS4_SESSION_DRAINING is set so there is no work to be done when draining
+- * is ended.
+- */
+-static void nfs4_end_drain_session(struct nfs_client *clp)
++static void nfs4_end_drain_slot_table(struct nfs4_slot_table *tbl)
+ {
+- struct nfs4_session *ses = clp->cl_session;
+- struct nfs4_slot_table *tbl;
+-
+- if (ses == NULL)
+- return;
+- tbl = &ses->fc_slot_table;
+ if (test_and_clear_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state)) {
+ spin_lock(&tbl->slot_tbl_lock);
+ nfs41_wake_slot_table(tbl);
+@@ -248,6 +237,16 @@ static void nfs4_end_drain_session(struc
+ }
+ }
+
++static void nfs4_end_drain_session(struct nfs_client *clp)
++{
++ struct nfs4_session *ses = clp->cl_session;
++
++ if (ses != NULL) {
++ nfs4_end_drain_slot_table(&ses->bc_slot_table);
++ nfs4_end_drain_slot_table(&ses->fc_slot_table);
++ }
++}
++
+ /*
+ * Signal state manager thread if session fore channel is drained
+ */
--- /dev/null
+From fa460c2d37870e0a6f94c70e8b76d05ca11b6db0 Mon Sep 17 00:00:00 2001
+From: Michal Hocko <mhocko@suse.cz>
+Date: Mon, 8 Jul 2013 16:00:27 -0700
+Subject: Revert "memcg: avoid dangling reference count in creation failure"
+
+From: Michal Hocko <mhocko@suse.cz>
+
+commit fa460c2d37870e0a6f94c70e8b76d05ca11b6db0 upstream.
+
+This reverts commit e4715f01be697a.
+
+mem_cgroup_put is hierarchy aware so mem_cgroup_put(memcg) already drops
+an additional reference from all parents so the additional
+mem_cgrroup_put(parent) potentially causes use-after-free.
+
+Signed-off-by: Michal Hocko <mhocko@suse.cz>
+Signed-off-by: Li Zefan <lizefan@huawei.com>
+Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
+Cc: Hugh Dickins <hughd@google.com>
+Cc: Tejun Heo <tj@kernel.org>
+Cc: Glauber Costa <glommer@openvz.org>
+Cc: Johannes Weiner <hannes@cmpxchg.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ mm/memcontrol.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/mm/memcontrol.c
++++ b/mm/memcontrol.c
+@@ -6303,8 +6303,6 @@ mem_cgroup_css_online(struct cgroup *con
+ * call __mem_cgroup_free, so return directly
+ */
+ mem_cgroup_put(memcg);
+- if (parent->use_hierarchy)
+- mem_cgroup_put(parent);
+ }
+ return error;
+ }
--- /dev/null
+From 2ee3e26c673e75c05ef8b914f54fadee3d7b9c88 Mon Sep 17 00:00:00 2001
+From: Ben Hutchings <ben@decadent.org.uk>
+Date: Mon, 27 May 2013 19:07:19 +0100
+Subject: SCSI: sd: Fix parsing of 'temporary ' cache mode prefix
+
+From: Ben Hutchings <ben@decadent.org.uk>
+
+commit 2ee3e26c673e75c05ef8b914f54fadee3d7b9c88 upstream.
+
+Commit 39c60a0948cc '[SCSI] sd: fix array cache flushing bug causing
+performance problems' added temp as a pointer to "temporary " and used
+sizeof(temp) - 1 as its length. But sizeof(temp) is the size of the
+pointer, not the size of the string constant. Change temp to a static
+array so that sizeof() does what was intended.
+
+Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
+Signed-off-by: James Bottomley <JBottomley@Parallels.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/scsi/sd.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/scsi/sd.c
++++ b/drivers/scsi/sd.c
+@@ -142,7 +142,7 @@ sd_store_cache_type(struct device *dev,
+ char *buffer_data;
+ struct scsi_mode_data data;
+ struct scsi_sense_hdr sshdr;
+- const char *temp = "temporary ";
++ static const char temp[] = "temporary ";
+ int len;
+
+ if (sdp->type != TYPE_DISK)
futex-take-hugepages-into-account-when-generating-futex_key.patch
tty-reset-itty-for-other-pty.patch
revert-serial-8250_pci-add-support-for-another-kind-of-netmos-technology-pci-9835-multi-i-o-controller.patch
+nfsv4.1-end-back-channel-session-draining.patch
+nfsd4-fix-decoding-of-compounds-across-page-boundaries.patch
+kvm-vmx-mark-unusable-segment-as-nonpresent.patch
+scsi-sd-fix-parsing-of-temporary-cache-mode-prefix.patch
+cpufreq-fix-cpufreq-regression-after-suspend-resume.patch
+revert-memcg-avoid-dangling-reference-count-in-creation-failure.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
