--- /dev/null
+From d3c56568f43807135f2c2a09582a69f809f0d8b7 Mon Sep 17 00:00:00 2001
+From: Takashi Iwai <tiwai@suse.de>
+Date: Mon, 3 Feb 2014 09:56:13 +0100
+Subject: ALSA: hda/realtek - Avoid invalid COEFs for ALC271X
+
+From: Takashi Iwai <tiwai@suse.de>
+
+commit d3c56568f43807135f2c2a09582a69f809f0d8b7 upstream.
+
+We've seen often problems after suspend/resume on Acer Aspire One
+AO725 with ALC271X codec as reported in kernel bugzilla, and it turned
+out that some COEFs doesn't work and triggers the codec communication
+stall.
+
+Since these magic COEF setups are specific to ALC269VB for some PLL
+configurations, the machine works even without these manual
+adjustment. So, let's simply avoid applying them for ALC271X.
+
+Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=52181
+Signed-off-by: Takashi Iwai <tiwai@suse.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ sound/pci/hda/patch_realtek.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/sound/pci/hda/patch_realtek.c
++++ b/sound/pci/hda/patch_realtek.c
+@@ -6260,6 +6260,9 @@ static void alc269_fill_coef(struct hda_
+
+ if (spec->codec_variant != ALC269_TYPE_ALC269VB)
+ return;
++ /* ALC271X doesn't seem to support these COEFs (bko#52181) */
++ if (!strcmp(codec->chip_name, "ALC271X"))
++ return;
+
+ if ((alc_get_coef0(codec) & 0x00ff) < 0x015) {
+ alc_write_coef_idx(codec, 0xf, 0x960b);
--- /dev/null
+From 227d53b397a32a7614667b3ecaf1d89902fb6c12 Mon Sep 17 00:00:00 2001
+From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
+Date: Thu, 6 Feb 2014 12:04:28 -0800
+Subject: mm: __set_page_dirty uses spin_lock_irqsave instead of spin_lock_irq
+
+From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
+
+commit 227d53b397a32a7614667b3ecaf1d89902fb6c12 upstream.
+
+To use spin_{un}lock_irq is dangerous if caller disabled interrupt.
+During aio buffer migration, we have a possibility to see the following
+call stack.
+
+aio_migratepage [disable interrupt]
+ migrate_page_copy
+ clear_page_dirty_for_io
+ set_page_dirty
+ __set_page_dirty_buffers
+ __set_page_dirty
+ spin_lock_irq
+
+This mean, current aio migration is a deadlockable. spin_lock_irqsave
+is a safer alternative and we should use it.
+
+Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
+Reported-by: David Rientjes rientjes@google.com>
+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>
+
+---
+ fs/buffer.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/fs/buffer.c
++++ b/fs/buffer.c
+@@ -613,14 +613,16 @@ EXPORT_SYMBOL(mark_buffer_dirty_inode);
+ static void __set_page_dirty(struct page *page,
+ struct address_space *mapping, int warn)
+ {
+- spin_lock_irq(&mapping->tree_lock);
++ unsigned long flags;
++
++ spin_lock_irqsave(&mapping->tree_lock, flags);
+ if (page->mapping) { /* Race with truncate? */
+ WARN_ON_ONCE(warn && !PageUptodate(page));
+ account_page_dirtied(page, mapping);
+ radix_tree_tag_set(&mapping->page_tree,
+ page_index(page), PAGECACHE_TAG_DIRTY);
+ }
+- spin_unlock_irq(&mapping->tree_lock);
++ spin_unlock_irqrestore(&mapping->tree_lock, flags);
+ __mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
+ }
+
--- /dev/null
+From a85d9df1ea1d23682a0ed1e100e6965006595d06 Mon Sep 17 00:00:00 2001
+From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
+Date: Thu, 6 Feb 2014 12:04:24 -0800
+Subject: mm: __set_page_dirty_nobuffers() uses spin_lock_irqsave() instead of spin_lock_irq()
+
+From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
+
+commit a85d9df1ea1d23682a0ed1e100e6965006595d06 upstream.
+
+During aio stress test, we observed the following lockdep warning. This
+mean AIO+numa_balancing is currently deadlockable.
+
+The problem is, aio_migratepage disable interrupt, but
+__set_page_dirty_nobuffers unintentionally enable it again.
+
+Generally, all helper function should use spin_lock_irqsave() instead of
+spin_lock_irq() because they don't know caller at all.
+
+ other info that might help us debug this:
+ Possible unsafe locking scenario:
+
+ CPU0
+ ----
+ lock(&(&ctx->completion_lock)->rlock);
+ <Interrupt>
+ lock(&(&ctx->completion_lock)->rlock);
+
+ *** DEADLOCK ***
+
+ dump_stack+0x19/0x1b
+ print_usage_bug+0x1f7/0x208
+ mark_lock+0x21d/0x2a0
+ mark_held_locks+0xb9/0x140
+ trace_hardirqs_on_caller+0x105/0x1d0
+ trace_hardirqs_on+0xd/0x10
+ _raw_spin_unlock_irq+0x2c/0x50
+ __set_page_dirty_nobuffers+0x8c/0xf0
+ migrate_page_copy+0x434/0x540
+ aio_migratepage+0xb1/0x140
+ move_to_new_page+0x7d/0x230
+ migrate_pages+0x5e5/0x700
+ migrate_misplaced_page+0xbc/0xf0
+ do_numa_page+0x102/0x190
+ handle_pte_fault+0x241/0x970
+ handle_mm_fault+0x265/0x370
+ __do_page_fault+0x172/0x5a0
+ do_page_fault+0x1a/0x70
+ page_fault+0x28/0x30
+
+Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
+Cc: Larry Woodman <lwoodman@redhat.com>
+Cc: Rik van Riel <riel@redhat.com>
+Cc: Johannes Weiner <jweiner@redhat.com>
+Acked-by: David Rientjes <rientjes@google.com>
+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/page-writeback.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/mm/page-writeback.c
++++ b/mm/page-writeback.c
+@@ -1993,11 +1993,12 @@ int __set_page_dirty_nobuffers(struct pa
+ if (!TestSetPageDirty(page)) {
+ struct address_space *mapping = page_mapping(page);
+ struct address_space *mapping2;
++ unsigned long flags;
+
+ if (!mapping)
+ return 1;
+
+- spin_lock_irq(&mapping->tree_lock);
++ spin_lock_irqsave(&mapping->tree_lock, flags);
+ mapping2 = page_mapping(page);
+ if (mapping2) { /* Race with truncate? */
+ BUG_ON(mapping2 != mapping);
+@@ -2006,7 +2007,7 @@ int __set_page_dirty_nobuffers(struct pa
+ radix_tree_tag_set(&mapping->page_tree,
+ page_index(page), PAGECACHE_TAG_DIRTY);
+ }
+- spin_unlock_irq(&mapping->tree_lock);
++ spin_unlock_irqrestore(&mapping->tree_lock, flags);
+ if (mapping->host) {
+ /* !PageAnon && !swapper_space */
+ __mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
selinux-fix-kernel-bug-on-empty-security-contexts.patch
+alsa-hda-realtek-avoid-invalid-coefs-for-alc271x.patch
+mm-__set_page_dirty_nobuffers-uses-spin_lock_irqsave-instead-of-spin_lock_irq.patch
+mm-__set_page_dirty-uses-spin_lock_irqsave-instead-of-spin_lock_irq.patch
+x86-hweight-fix-bug-when-booting-with-config_gcov_profile_all-y.patch
--- /dev/null
+From 6583327c4dd55acbbf2a6f25e775b28b3abf9a42 Mon Sep 17 00:00:00 2001
+From: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
+Date: Thu, 6 Feb 2014 15:58:20 +0100
+Subject: x86, hweight: Fix BUG when booting with CONFIG_GCOV_PROFILE_ALL=y
+
+From: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
+
+commit 6583327c4dd55acbbf2a6f25e775b28b3abf9a42 upstream.
+
+Commit d61931d89b, "x86: Add optimized popcnt variants" introduced
+compile flag -fcall-saved-rdi for lib/hweight.c. When combined with
+options -fprofile-arcs and -O2, this flag causes gcc to generate
+broken constructor code. As a result, a 64 bit x86 kernel compiled
+with CONFIG_GCOV_PROFILE_ALL=y prints message "gcov: could not create
+file" and runs into sproadic BUGs during boot.
+
+The gcc people indicate that these kinds of problems are endemic when
+using ad hoc calling conventions. It is therefore best to treat any
+file compiled with ad hoc calling conventions as an isolated
+environment and avoid things like profiling or coverage analysis,
+since those subsystems assume a "normal" calling conventions.
+
+This patch avoids the bug by excluding lib/hweight.o from coverage
+profiling.
+
+Reported-by: Meelis Roos <mroos@linux.ee>
+Cc: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
+Link: http://lkml.kernel.org/r/52F3A30C.7050205@linux.vnet.ibm.com
+Signed-off-by: H. Peter Anvin <hpa@zytor.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ lib/Makefile | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/lib/Makefile
++++ b/lib/Makefile
+@@ -41,6 +41,7 @@ obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock
+ lib-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
+ lib-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem.o
+
++GCOV_PROFILE_hweight.o := n
+ CFLAGS_hweight.o = $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
+ obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
+
projects / thirdparty / kernel / stable-queue.git / commitdiff
