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Merge branch 'akpm'

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* akpm:
  mm: compaction: check pfn_valid when entering a new MAX_ORDER_NR_PAGES block during isolation for migration
  readahead: fix pipeline break caused by block plug
  kprobes: fix a memory leak in function pre_handler_kretprobe()
  drivers/tty/vt/vt_ioctl.c: fix KDFONTOP 32bit compatibility layer
  lkdtm: avoid calling lkdtm_do_action() with spinlock held
  mm/filemap_xip.c: fix race condition in xip_file_fault()
  mm/memcontrol.c: fix warning with CONFIG_NUMA=n
  avr32: select generic atomic64_t support
  mm: postpone migrated page mapping reset
  xtensa: fix memscan()
  MAINTAINERS: update lguest F: patterns
  MAINTAINERS: remove staging sections
  MAINTAINERS: remove iMX5 section
  MAINTAINERS: update partitions block F: patterns
This commit is contained in:
Linus Torvalds 2012-02-04 10:51:54 -08:00
commit 82bdc843c2
11 changed files with 41 additions and 28 deletions
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19
MAINTAINERS
View File

@ -789,12 +789,6 @@ F: arch/arm/mach-mx*/
F: arch/arm/mach-imx/
F: arch/arm/plat-mxc/
ARM/FREESCALE IMX51
M: Amit Kucheria <amit.kucheria@canonical.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-mx5/
ARM/FREESCALE IMX6
M: Shawn Guo <shawn.guo@linaro.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@ -3992,11 +3986,11 @@ M: Rusty Russell <rusty@rustcorp.com.au>
L: lguest@lists.ozlabs.org
W: http://lguest.ozlabs.org/
S: Odd Fixes
F: Documentation/virtual/lguest/
F: arch/x86/include/asm/lguest*.h
F: arch/x86/lguest/
F: drivers/lguest/
F: include/linux/lguest*.h
F: arch/x86/include/asm/lguest*.h
F: tools/lguest/
LINUX FOR IBM pSERIES (RS/6000)
M: Paul Mackerras <paulus@au.ibm.com>
@ -4136,7 +4130,7 @@ L: linux-ntfs-dev@lists.sourceforge.net
W: http://www.linux-ntfs.org/content/view/19/37/
S: Maintained
F: Documentation/ldm.txt
F: fs/partitions/ldm.*
F: block/partitions/ldm.*
LogFS
M: Joern Engel <joern@logfs.org>
@ -5633,7 +5627,7 @@ W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
F: arch/s390/
F: drivers/s390/
F: fs/partitions/ibm.c
F: block/partitions/ibm.c
F: Documentation/s390/
F: Documentation/DocBook/s390*
@ -6396,11 +6390,6 @@ M: Omar Ramirez Luna <omar.ramirez@ti.com>
S: Odd Fixes
F: drivers/staging/tidspbridge/
STAGING - TRIDENT TVMASTER TMxxxx USB VIDEO CAPTURE DRIVERS
L: linux-media@vger.kernel.org
S: Odd Fixes
F: drivers/staging/tm6000/
STAGING - USB ENE SM/MS CARD READER DRIVER
M: Al Cho <acho@novell.com>
S: Odd Fixes

1
arch/avr32/Kconfig
View File

@ -8,6 +8,7 @@ config AVR32
select HAVE_KPROBES
select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_PROBE
select GENERIC_ATOMIC64
select HARDIRQS_SW_RESEND
select GENERIC_IRQ_SHOW
select ARCH_HAVE_NMI_SAFE_CMPXCHG

3
arch/xtensa/include/asm/string.h
View File

@ -118,7 +118,4 @@ extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
/* Don't build bcopy at all ... */
#define __HAVE_ARCH_BCOPY
#define __HAVE_ARCH_MEMSCAN
#define memscan memchr
#endif /* _XTENSA_STRING_H */

6
drivers/misc/lkdtm.c
View File

@ -354,6 +354,7 @@ static void lkdtm_do_action(enum ctype which)
static void lkdtm_handler(void)
{
unsigned long flags;
bool do_it = false;
spin_lock_irqsave(&count_lock, flags);
count--;
@ -361,10 +362,13 @@ static void lkdtm_handler(void)
cp_name_to_str(cpoint), cp_type_to_str(cptype), count);
if (count == 0) {
lkdtm_do_action(cptype);
do_it = true;
count = cpoint_count;
}
spin_unlock_irqrestore(&count_lock, flags);
if (do_it)
lkdtm_do_action(cptype);
}
static int lkdtm_register_cpoint(enum cname which)

1
drivers/tty/vt/vt_ioctl.c
View File

@ -1463,7 +1463,6 @@ compat_kdfontop_ioctl(struct compat_console_font_op __user *fontop,
if (!perm && op->op != KD_FONT_OP_GET)
return -EPERM;
op->data = compat_ptr(((struct compat_console_font_op *)op)->data);
op->flags |= KD_FONT_FLAG_OLD;
i = con_font_op(vc, op);
if (i)
return i;

6
kernel/kprobes.c
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@ -1673,8 +1673,12 @@ static int __kprobes pre_handler_kretprobe(struct kprobe *p,
ri->rp = rp;
ri->task = current;
if (rp->entry_handler && rp->entry_handler(ri, regs))
if (rp->entry_handler && rp->entry_handler(ri, regs)) {
raw_spin_lock_irqsave(&rp->lock, flags);
hlist_add_head(&ri->hlist, &rp->free_instances);
raw_spin_unlock_irqrestore(&rp->lock, flags);
return 0;
}
arch_prepare_kretprobe(ri, regs);

13
mm/compaction.c
View File

@ -313,6 +313,19 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone,
} else if (!locked)
spin_lock_irq(&zone->lru_lock);
/*
* migrate_pfn does not necessarily start aligned to a
* pageblock. Ensure that pfn_valid is called when moving
* into a new MAX_ORDER_NR_PAGES range in case of large
* memory holes within the zone
*/
if ((low_pfn & (MAX_ORDER_NR_PAGES - 1)) == 0) {
if (!pfn_valid(low_pfn)) {
low_pfn += MAX_ORDER_NR_PAGES - 1;
continue;
}
}
if (!pfn_valid_within(low_pfn))
continue;
nr_scanned++;

8
mm/filemap.c
View File

@ -1400,15 +1400,12 @@ generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
unsigned long seg = 0;
size_t count;
loff_t *ppos = &iocb->ki_pos;
struct blk_plug plug;
count = 0;
retval = generic_segment_checks(iov, &nr_segs, &count, VERIFY_WRITE);
if (retval)
return retval;
blk_start_plug(&plug);
/* coalesce the iovecs and go direct-to-BIO for O_DIRECT */
if (filp->f_flags & O_DIRECT) {
loff_t size;
@ -1424,8 +1421,12 @@ generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
retval = filemap_write_and_wait_range(mapping, pos,
pos + iov_length(iov, nr_segs) - 1);
if (!retval) {
struct blk_plug plug;
blk_start_plug(&plug);
retval = mapping->a_ops->direct_IO(READ, iocb,
iov, pos, nr_segs);
blk_finish_plug(&plug);
}
if (retval > 0) {
*ppos = pos + retval;
@ -1481,7 +1482,6 @@ generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
break;
}
out:
blk_finish_plug(&plug);
return retval;
}
EXPORT_SYMBOL(generic_file_aio_read);

7
mm/filemap_xip.c
View File

@ -263,7 +263,12 @@ found:
xip_pfn);
if (err == -ENOMEM)
return VM_FAULT_OOM;
BUG_ON(err);
/*
* err == -EBUSY is fine, we've raced against another thread
* that faulted-in the same page
*/
if (err != -EBUSY)
BUG_ON(err);
return VM_FAULT_NOPAGE;
} else {
int err, ret = VM_FAULT_OOM;

3
mm/memcontrol.c
View File

@ -776,7 +776,8 @@ static void memcg_check_events(struct mem_cgroup *memcg, struct page *page)
/* threshold event is triggered in finer grain than soft limit */
if (unlikely(mem_cgroup_event_ratelimit(memcg,
MEM_CGROUP_TARGET_THRESH))) {
bool do_softlimit, do_numainfo;
bool do_softlimit;
bool do_numainfo __maybe_unused;
do_softlimit = mem_cgroup_event_ratelimit(memcg,
MEM_CGROUP_TARGET_SOFTLIMIT);

2
mm/migrate.c
View File

@ -445,7 +445,6 @@ void migrate_page_copy(struct page *newpage, struct page *page)
ClearPageSwapCache(page);
ClearPagePrivate(page);
set_page_private(page, 0);
page->mapping = NULL;
/*
* If any waiters have accumulated on the new page then
@ -667,6 +666,7 @@ static int move_to_new_page(struct page *newpage, struct page *page,
} else {
if (remap_swapcache)
remove_migration_ptes(page, newpage);
page->mapping = NULL;
}
unlock_page(newpage);