Merge branch 'akpm' (patches from Andrew Morton)
Merge random fixes from Andrew Morton:
"Random fixes.
I have one batch remaining for -rc1, mainly zram changes which await a
merge of Jens's trees"
* emailed patches fron Andrew Morton akpm@linux-foundation.org>:
MAINTAINERS: ADI Linux development mailing lists: change to the new server
Documentation: fix multiple typo occurences s/KenelVersion/KernelVersion/
dma-debug: fix overlap detection
memblock: add limit checking to memblock_virt_alloc
mm/readahead.c: fix do_readahead() for no readpage(s)
mm/slub.c: do not VM_BUG_ON_PAGE() for temporary on-stack pages
slab: fix wrong retval on kmem_cache_create_memcg error path
s390/compat: change parameter types from unsigned long to compat_ulong_t
fs/compat: fix lookup_dcookie() parameter handling
fs/compat: fix parameter handling for compat readv/writev syscalls
mm/mempolicy.c: convert to pr_foo()
mm: numa: initialise numa balancing after jump label initialisation
mm/page-writeback.c: do not count anon pages as dirtyable memory
mm/page-writeback.c: fix dirty_balance_reserve subtraction from dirtyable memory
mm: document improved handling of swappiness==0
lib/genalloc.c: add check gen_pool_dma_alloc() if dma pointer is not NULL
diff --git a/Documentation/ABI/testing/configfs-usb-gadget b/Documentation/ABI/testing/configfs-usb-gadget
index 01e769d..37559a0 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget
+++ b/Documentation/ABI/testing/configfs-usb-gadget
@@ -1,13 +1,13 @@
What: /config/usb-gadget
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
This group contains sub-groups corresponding to created
USB gadgets.
What: /config/usb-gadget/gadget
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
The attributes of a gadget:
@@ -27,7 +27,7 @@
What: /config/usb-gadget/gadget/configs
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
This group contains a USB gadget's configurations
@@ -58,20 +58,20 @@
What: /config/usb-gadget/gadget/functions
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
This group contains functions available to this USB gadget.
What: /config/usb-gadget/gadget/strings
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
This group contains subdirectories for language-specific
strings for this gadget.
What: /config/usb-gadget/gadget/strings/language
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
The attributes:
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-acm b/Documentation/ABI/testing/configfs-usb-gadget-acm
index 5708a56..d21092d 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-acm
+++ b/Documentation/ABI/testing/configfs-usb-gadget-acm
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/acm.name
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
This item contains just one readonly attribute: port_num.
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-ecm b/Documentation/ABI/testing/configfs-usb-gadget-ecm
index 6b9a582..0addf77 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-ecm
+++ b/Documentation/ABI/testing/configfs-usb-gadget-ecm
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/ecm.name
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
The attributes:
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-eem b/Documentation/ABI/testing/configfs-usb-gadget-eem
index dbddf36..a4c5715 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-eem
+++ b/Documentation/ABI/testing/configfs-usb-gadget-eem
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/eem.name
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
The attributes:
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-ffs b/Documentation/ABI/testing/configfs-usb-gadget-ffs
index 14343e2..e39b276 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-ffs
+++ b/Documentation/ABI/testing/configfs-usb-gadget-ffs
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/ffs.name
Date: Nov 2013
-KenelVersion: 3.13
+KernelVersion: 3.13
Description: The purpose of this directory is to create and remove it.
A corresponding USB function instance is created/removed.
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-loopback b/Documentation/ABI/testing/configfs-usb-gadget-loopback
index 852b236..9aae5bf 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-loopback
+++ b/Documentation/ABI/testing/configfs-usb-gadget-loopback
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/Loopback.name
Date: Nov 2013
-KenelVersion: 3.13
+KernelVersion: 3.13
Description:
The attributes:
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-mass-storage b/Documentation/ABI/testing/configfs-usb-gadget-mass-storage
index ad72a37..9931fb0 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-mass-storage
+++ b/Documentation/ABI/testing/configfs-usb-gadget-mass-storage
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/mass_storage.name
Date: Oct 2013
-KenelVersion: 3.13
+KernelVersion: 3.13
Description:
The attributes:
@@ -13,7 +13,7 @@
What: /config/usb-gadget/gadget/functions/mass_storage.name/lun.name
Date: Oct 2013
-KenelVersion: 3.13
+KernelVersion: 3.13
Description:
The attributes:
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-ncm b/Documentation/ABI/testing/configfs-usb-gadget-ncm
index bc309f423..6fe723e 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-ncm
+++ b/Documentation/ABI/testing/configfs-usb-gadget-ncm
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/ncm.name
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
The attributes:
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-obex b/Documentation/ABI/testing/configfs-usb-gadget-obex
index aaa5c96..a6a9327 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-obex
+++ b/Documentation/ABI/testing/configfs-usb-gadget-obex
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/obex.name
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
This item contains just one readonly attribute: port_num.
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-phonet b/Documentation/ABI/testing/configfs-usb-gadget-phonet
index 3e3b742..7037a35 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-phonet
+++ b/Documentation/ABI/testing/configfs-usb-gadget-phonet
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/phonet.name
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
This item contains just one readonly attribute: ifname.
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-rndis b/Documentation/ABI/testing/configfs-usb-gadget-rndis
index 822e6da..e32879b 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-rndis
+++ b/Documentation/ABI/testing/configfs-usb-gadget-rndis
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/rndis.name
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
The attributes:
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-serial b/Documentation/ABI/testing/configfs-usb-gadget-serial
index 16f130c..474d249 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-serial
+++ b/Documentation/ABI/testing/configfs-usb-gadget-serial
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/gser.name
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
This item contains just one readonly attribute: port_num.
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-sourcesink b/Documentation/ABI/testing/configfs-usb-gadget-sourcesink
index a30f309..29477c3 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-sourcesink
+++ b/Documentation/ABI/testing/configfs-usb-gadget-sourcesink
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/SourceSink.name
Date: Nov 2013
-KenelVersion: 3.13
+KernelVersion: 3.13
Description:
The attributes:
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-subset b/Documentation/ABI/testing/configfs-usb-gadget-subset
index 154ae59..9373e2c5 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-subset
+++ b/Documentation/ABI/testing/configfs-usb-gadget-subset
@@ -1,6 +1,6 @@
What: /config/usb-gadget/gadget/functions/geth.name
Date: Jun 2013
-KenelVersion: 3.11
+KernelVersion: 3.11
Description:
The attributes:
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
index 9f5481b..d614a9b 100644
--- a/Documentation/sysctl/vm.txt
+++ b/Documentation/sysctl/vm.txt
@@ -696,7 +696,9 @@
This control is used to define how aggressive the kernel will swap
memory pages. Higher values will increase agressiveness, lower values
-decrease the amount of swap.
+decrease the amount of swap. A value of 0 instructs the kernel not to
+initiate swap until the amount of free and file-backed pages is less
+than the high water mark in a zone.
The default value is 60.
diff --git a/MAINTAINERS b/MAINTAINERS
index 6d73831c..38b81df 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -309,36 +309,36 @@
AD525X ANALOG DEVICES DIGITAL POTENTIOMETERS DRIVER
M: Michael Hennerich <michael.hennerich@analog.com>
-L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/AD5254
+W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/misc/ad525x_dpot.c
AD5398 CURRENT REGULATOR DRIVER (AD5398/AD5821)
M: Michael Hennerich <michael.hennerich@analog.com>
-L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/AD5398
+W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/regulator/ad5398.c
AD714X CAPACITANCE TOUCH SENSOR DRIVER (AD7142/3/7/8/7A)
M: Michael Hennerich <michael.hennerich@analog.com>
-L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/AD7142
+W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/input/misc/ad714x.c
AD7877 TOUCHSCREEN DRIVER
M: Michael Hennerich <michael.hennerich@analog.com>
-L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/AD7877
+W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/input/touchscreen/ad7877.c
AD7879 TOUCHSCREEN DRIVER (AD7879/AD7889)
M: Michael Hennerich <michael.hennerich@analog.com>
-L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/AD7879
+W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/input/touchscreen/ad7879.c
@@ -374,8 +374,8 @@
ADP5520 BACKLIGHT DRIVER WITH IO EXPANDER (ADP5520/ADP5501)
M: Michael Hennerich <michael.hennerich@analog.com>
-L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/ADP5520
+W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/mfd/adp5520.c
F: drivers/video/backlight/adp5520_bl.c
@@ -385,16 +385,16 @@
ADP5588 QWERTY KEYPAD AND IO EXPANDER DRIVER (ADP5588/ADP5587)
M: Michael Hennerich <michael.hennerich@analog.com>
-L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/ADP5588
+W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/input/keyboard/adp5588-keys.c
F: drivers/gpio/gpio-adp5588.c
ADP8860 BACKLIGHT DRIVER (ADP8860/ADP8861/ADP8863)
M: Michael Hennerich <michael.hennerich@analog.com>
-L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/ADP8860
+W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/video/backlight/adp8860_bl.c
@@ -420,8 +420,8 @@
ADXL34X THREE-AXIS DIGITAL ACCELEROMETER DRIVER (ADXL345/ADXL346)
M: Michael Hennerich <michael.hennerich@analog.com>
-L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/ADXL345
+W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/input/misc/adxl34x.c
@@ -627,9 +627,9 @@
ANALOG DEVICES INC ASOC CODEC DRIVERS
M: Lars-Peter Clausen <lars@metafoo.de>
-L: device-drivers-devel@blackfin.uclinux.org
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
W: http://wiki.analog.com/
+W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: sound/soc/codecs/adau*
F: sound/soc/codecs/adav*
@@ -639,7 +639,7 @@
F: sound/soc/codecs/sigmadsp.*
ANALOG DEVICES INC ASOC DRIVERS
-L: uclinux-dist-devel@blackfin.uclinux.org
+L: adi-buildroot-devel@lists.sourceforge.net
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
W: http://blackfin.uclinux.org/
S: Supported
@@ -1742,56 +1742,54 @@
F: include/uapi/linux/bfs_fs.h
BLACKFIN ARCHITECTURE
-M: Mike Frysinger <vapier@gentoo.org>
-L: uclinux-dist-devel@blackfin.uclinux.org
+M: Steven Miao <realmz6@gmail.com>
+L: adi-buildroot-devel@lists.sourceforge.net
W: http://blackfin.uclinux.org
S: Supported
F: arch/blackfin/
BLACKFIN EMAC DRIVER
-L: uclinux-dist-devel@blackfin.uclinux.org
+L: adi-buildroot-devel@lists.sourceforge.net
W: http://blackfin.uclinux.org
S: Supported
F: drivers/net/ethernet/adi/
BLACKFIN RTC DRIVER
-M: Mike Frysinger <vapier.adi@gmail.com>
-L: uclinux-dist-devel@blackfin.uclinux.org
+L: adi-buildroot-devel@lists.sourceforge.net
W: http://blackfin.uclinux.org
S: Supported
F: drivers/rtc/rtc-bfin.c
BLACKFIN SDH DRIVER
M: Sonic Zhang <sonic.zhang@analog.com>
-L: uclinux-dist-devel@blackfin.uclinux.org
+L: adi-buildroot-devel@lists.sourceforge.net
W: http://blackfin.uclinux.org
S: Supported
F: drivers/mmc/host/bfin_sdh.c
BLACKFIN SERIAL DRIVER
M: Sonic Zhang <sonic.zhang@analog.com>
-L: uclinux-dist-devel@blackfin.uclinux.org
+L: adi-buildroot-devel@lists.sourceforge.net
W: http://blackfin.uclinux.org
S: Supported
F: drivers/tty/serial/bfin_uart.c
BLACKFIN WATCHDOG DRIVER
-M: Mike Frysinger <vapier.adi@gmail.com>
-L: uclinux-dist-devel@blackfin.uclinux.org
+L: adi-buildroot-devel@lists.sourceforge.net
W: http://blackfin.uclinux.org
S: Supported
F: drivers/watchdog/bfin_wdt.c
BLACKFIN I2C TWI DRIVER
M: Sonic Zhang <sonic.zhang@analog.com>
-L: uclinux-dist-devel@blackfin.uclinux.org
+L: adi-buildroot-devel@lists.sourceforge.net
W: http://blackfin.uclinux.org/
S: Supported
F: drivers/i2c/busses/i2c-bfin-twi.c
BLACKFIN MEDIA DRIVER
M: Scott Jiang <scott.jiang.linux@gmail.com>
-L: uclinux-dist-devel@blackfin.uclinux.org
+L: adi-buildroot-devel@lists.sourceforge.net
W: http://blackfin.uclinux.org/
S: Supported
F: drivers/media/platform/blackfin/
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index e030d2b..db02052 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -286,8 +286,8 @@
}
#ifdef CONFIG_SYSVIPC
-COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, unsigned long, second,
- unsigned long, third, compat_uptr_t, ptr)
+COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, compat_ulong_t, second,
+ compat_ulong_t, third, compat_uptr_t, ptr)
{
if (call >> 16) /* hack for backward compatibility */
return -EINVAL;
diff --git a/fs/dcookies.c b/fs/dcookies.c
index ab5954b..ac44a69 100644
--- a/fs/dcookies.c
+++ b/fs/dcookies.c
@@ -204,7 +204,7 @@
}
#ifdef CONFIG_COMPAT
-COMPAT_SYSCALL_DEFINE4(lookup_dcookie, u32, w0, u32, w1, char __user *, buf, size_t, len)
+COMPAT_SYSCALL_DEFINE4(lookup_dcookie, u32, w0, u32, w1, char __user *, buf, compat_size_t, len)
{
#ifdef __BIG_ENDIAN
return sys_lookup_dcookie(((u64)w0 << 32) | w1, buf, len);
diff --git a/fs/read_write.c b/fs/read_write.c
index 1193ffd..edc5746 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -964,9 +964,9 @@
return ret;
}
-COMPAT_SYSCALL_DEFINE3(readv, unsigned long, fd,
+COMPAT_SYSCALL_DEFINE3(readv, compat_ulong_t, fd,
const struct compat_iovec __user *,vec,
- unsigned long, vlen)
+ compat_ulong_t, vlen)
{
struct fd f = fdget(fd);
ssize_t ret;
@@ -1001,9 +1001,9 @@
return ret;
}
-COMPAT_SYSCALL_DEFINE5(preadv, unsigned long, fd,
+COMPAT_SYSCALL_DEFINE5(preadv, compat_ulong_t, fd,
const struct compat_iovec __user *,vec,
- unsigned long, vlen, u32, pos_low, u32, pos_high)
+ compat_ulong_t, vlen, u32, pos_low, u32, pos_high)
{
loff_t pos = ((loff_t)pos_high << 32) | pos_low;
return compat_sys_preadv64(fd, vec, vlen, pos);
@@ -1031,9 +1031,9 @@
return ret;
}
-COMPAT_SYSCALL_DEFINE3(writev, unsigned long, fd,
+COMPAT_SYSCALL_DEFINE3(writev, compat_ulong_t, fd,
const struct compat_iovec __user *, vec,
- unsigned long, vlen)
+ compat_ulong_t, vlen)
{
struct fd f = fdget(fd);
ssize_t ret;
@@ -1068,9 +1068,9 @@
return ret;
}
-COMPAT_SYSCALL_DEFINE5(pwritev, unsigned long, fd,
+COMPAT_SYSCALL_DEFINE5(pwritev, compat_ulong_t, fd,
const struct compat_iovec __user *,vec,
- unsigned long, vlen, u32, pos_low, u32, pos_high)
+ compat_ulong_t, vlen, u32, pos_low, u32, pos_high)
{
loff_t pos = ((loff_t)pos_high << 32) | pos_low;
return compat_sys_pwritev64(fd, vec, vlen, pos);
diff --git a/include/linux/compat.h b/include/linux/compat.h
index eb8a49d..19f6003 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -327,16 +327,16 @@
u32 arg2, u32 arg3, u32 arg4, u32 arg5);
asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
-asmlinkage ssize_t compat_sys_readv(unsigned long fd,
- const struct compat_iovec __user *vec, unsigned long vlen);
-asmlinkage ssize_t compat_sys_writev(unsigned long fd,
- const struct compat_iovec __user *vec, unsigned long vlen);
-asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
+asmlinkage ssize_t compat_sys_readv(compat_ulong_t fd,
+ const struct compat_iovec __user *vec, compat_ulong_t vlen);
+asmlinkage ssize_t compat_sys_writev(compat_ulong_t fd,
+ const struct compat_iovec __user *vec, compat_ulong_t vlen);
+asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd,
const struct compat_iovec __user *vec,
- unsigned long vlen, u32 pos_low, u32 pos_high);
-asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
+ compat_ulong_t vlen, u32 pos_low, u32 pos_high);
+asmlinkage ssize_t compat_sys_pwritev(compat_ulong_t fd,
const struct compat_iovec __user *vec,
- unsigned long vlen, u32 pos_low, u32 pos_high);
+ compat_ulong_t vlen, u32 pos_low, u32 pos_high);
asmlinkage long comat_sys_lseek(unsigned int, compat_off_t, unsigned int);
asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
@@ -422,7 +422,7 @@
asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
compat_long_t addr, compat_long_t data);
-asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, size_t);
+asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
/*
* epoll (fs/eventpoll.c) compat bits follow ...
*/
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index e4b9480..a67b384 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -142,8 +142,6 @@
return x;
}
-extern unsigned long global_reclaimable_pages(void);
-
#ifdef CONFIG_NUMA
/*
* Determine the per node value of a stat item. This function
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index c380838..2defd13 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -463,7 +463,7 @@
int i;
if (overlap > ACTIVE_PFN_MAX_OVERLAP || overlap < 0)
- return 0;
+ return overlap;
for (i = RADIX_TREE_MAX_TAGS - 1; i >= 0; i--)
if (overlap & 1 << i)
@@ -486,7 +486,7 @@
* debug_dma_assert_idle() as the pfn may be marked idle
* prematurely.
*/
- WARN_ONCE(overlap == 0,
+ WARN_ONCE(overlap > ACTIVE_PFN_MAX_OVERLAP,
"DMA-API: exceeded %d overlapping mappings of pfn %lx\n",
ACTIVE_PFN_MAX_OVERLAP, pfn);
}
@@ -517,7 +517,11 @@
unsigned long flags;
spin_lock_irqsave(&radix_lock, flags);
- if (active_pfn_dec_overlap(entry->pfn) == 0)
+ /* since we are counting overlaps the final put of the
+ * entry->pfn will occur when the overlap count is 0.
+ * active_pfn_dec_overlap() returns -1 in that case
+ */
+ if (active_pfn_dec_overlap(entry->pfn) < 0)
radix_tree_delete(&dma_active_pfn, entry->pfn);
spin_unlock_irqrestore(&radix_lock, flags);
}
diff --git a/lib/genalloc.c b/lib/genalloc.c
index dda3116..bdb9a45 100644
--- a/lib/genalloc.c
+++ b/lib/genalloc.c
@@ -316,7 +316,7 @@
* gen_pool_dma_alloc - allocate special memory from the pool for DMA usage
* @pool: pool to allocate from
* @size: number of bytes to allocate from the pool
- * @dma: dma-view physical address
+ * @dma: dma-view physical address return value. Use NULL if unneeded.
*
* Allocate the requested number of bytes from the specified pool.
* Uses the pool allocation function (with first-fit algorithm by default).
@@ -334,7 +334,8 @@
if (!vaddr)
return NULL;
- *dma = gen_pool_virt_to_phys(pool, vaddr);
+ if (dma)
+ *dma = gen_pool_virt_to_phys(pool, vaddr);
return (void *)vaddr;
}
diff --git a/mm/internal.h b/mm/internal.h
index 612c14f..29e1e76 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -83,7 +83,6 @@
*/
extern int isolate_lru_page(struct page *page);
extern void putback_lru_page(struct page *page);
-extern unsigned long zone_reclaimable_pages(struct zone *zone);
extern bool zone_reclaimable(struct zone *zone);
/*
diff --git a/mm/memblock.c b/mm/memblock.c
index 87d21a6..39a31e7 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1077,6 +1077,9 @@
if (!align)
align = SMP_CACHE_BYTES;
+ if (max_addr > memblock.current_limit)
+ max_addr = memblock.current_limit;
+
again:
alloc = memblock_find_in_range_node(size, align, min_addr, max_addr,
nid);
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 36cb46c..873de7e 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2654,7 +2654,7 @@
}
#ifdef CONFIG_NUMA_BALANCING
-static bool __initdata numabalancing_override;
+static int __initdata numabalancing_override;
static void __init check_numabalancing_enable(void)
{
@@ -2663,9 +2663,15 @@
if (IS_ENABLED(CONFIG_NUMA_BALANCING_DEFAULT_ENABLED))
numabalancing_default = true;
+ /* Parsed by setup_numabalancing. override == 1 enables, -1 disables */
+ if (numabalancing_override)
+ set_numabalancing_state(numabalancing_override == 1);
+
if (nr_node_ids > 1 && !numabalancing_override) {
- printk(KERN_INFO "Enabling automatic NUMA balancing. "
- "Configure with numa_balancing= or the kernel.numa_balancing sysctl");
+ pr_info("%s automatic NUMA balancing. "
+ "Configure with numa_balancing= or the "
+ "kernel.numa_balancing sysctl",
+ numabalancing_default ? "Enabling" : "Disabling");
set_numabalancing_state(numabalancing_default);
}
}
@@ -2675,18 +2681,17 @@
int ret = 0;
if (!str)
goto out;
- numabalancing_override = true;
if (!strcmp(str, "enable")) {
- set_numabalancing_state(true);
+ numabalancing_override = 1;
ret = 1;
} else if (!strcmp(str, "disable")) {
- set_numabalancing_state(false);
+ numabalancing_override = -1;
ret = 1;
}
out:
if (!ret)
- printk(KERN_WARNING "Unable to parse numa_balancing=\n");
+ pr_warn("Unable to parse numa_balancing=\n");
return ret;
}
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 6380758..2d30e2c 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -191,6 +191,26 @@
* global dirtyable memory first.
*/
+/**
+ * zone_dirtyable_memory - number of dirtyable pages in a zone
+ * @zone: the zone
+ *
+ * Returns the zone's number of pages potentially available for dirty
+ * page cache. This is the base value for the per-zone dirty limits.
+ */
+static unsigned long zone_dirtyable_memory(struct zone *zone)
+{
+ unsigned long nr_pages;
+
+ nr_pages = zone_page_state(zone, NR_FREE_PAGES);
+ nr_pages -= min(nr_pages, zone->dirty_balance_reserve);
+
+ nr_pages += zone_page_state(zone, NR_INACTIVE_FILE);
+ nr_pages += zone_page_state(zone, NR_ACTIVE_FILE);
+
+ return nr_pages;
+}
+
static unsigned long highmem_dirtyable_memory(unsigned long total)
{
#ifdef CONFIG_HIGHMEM
@@ -198,11 +218,9 @@
unsigned long x = 0;
for_each_node_state(node, N_HIGH_MEMORY) {
- struct zone *z =
- &NODE_DATA(node)->node_zones[ZONE_HIGHMEM];
+ struct zone *z = &NODE_DATA(node)->node_zones[ZONE_HIGHMEM];
- x += zone_page_state(z, NR_FREE_PAGES) +
- zone_reclaimable_pages(z) - z->dirty_balance_reserve;
+ x += zone_dirtyable_memory(z);
}
/*
* Unreclaimable memory (kernel memory or anonymous memory
@@ -238,9 +256,12 @@
{
unsigned long x;
- x = global_page_state(NR_FREE_PAGES) + global_reclaimable_pages();
+ x = global_page_state(NR_FREE_PAGES);
x -= min(x, dirty_balance_reserve);
+ x += global_page_state(NR_INACTIVE_FILE);
+ x += global_page_state(NR_ACTIVE_FILE);
+
if (!vm_highmem_is_dirtyable)
x -= highmem_dirtyable_memory(x);
@@ -289,32 +310,6 @@
}
/**
- * zone_dirtyable_memory - number of dirtyable pages in a zone
- * @zone: the zone
- *
- * Returns the zone's number of pages potentially available for dirty
- * page cache. This is the base value for the per-zone dirty limits.
- */
-static unsigned long zone_dirtyable_memory(struct zone *zone)
-{
- /*
- * The effective global number of dirtyable pages may exclude
- * highmem as a big-picture measure to keep the ratio between
- * dirty memory and lowmem reasonable.
- *
- * But this function is purely about the individual zone and a
- * highmem zone can hold its share of dirty pages, so we don't
- * care about vm_highmem_is_dirtyable here.
- */
- unsigned long nr_pages = zone_page_state(zone, NR_FREE_PAGES) +
- zone_reclaimable_pages(zone);
-
- /* don't allow this to underflow */
- nr_pages -= min(nr_pages, zone->dirty_balance_reserve);
- return nr_pages;
-}
-
-/**
* zone_dirty_limit - maximum number of dirty pages allowed in a zone
* @zone: the zone
*
diff --git a/mm/readahead.c b/mm/readahead.c
index 7cdbb44..0de2360 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -211,8 +211,6 @@
int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
pgoff_t offset, unsigned long nr_to_read)
{
- int ret = 0;
-
if (unlikely(!mapping->a_ops->readpage && !mapping->a_ops->readpages))
return -EINVAL;
@@ -226,15 +224,13 @@
this_chunk = nr_to_read;
err = __do_page_cache_readahead(mapping, filp,
offset, this_chunk, 0);
- if (err < 0) {
- ret = err;
- break;
- }
- ret += err;
+ if (err < 0)
+ return err;
+
offset += this_chunk;
nr_to_read -= this_chunk;
}
- return ret;
+ return 0;
}
/*
@@ -576,8 +572,7 @@
if (!mapping || !mapping->a_ops)
return -EINVAL;
- force_page_cache_readahead(mapping, filp, index, nr);
- return 0;
+ return force_page_cache_readahead(mapping, filp, index, nr);
}
SYSCALL_DEFINE3(readahead, int, fd, loff_t, offset, size_t, count)
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 8e40321..1ec3c61 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -233,14 +233,17 @@
mutex_unlock(&slab_mutex);
put_online_cpus();
- /*
- * There is no point in flooding logs with warnings or especially
- * crashing the system if we fail to create a cache for a memcg. In
- * this case we will be accounting the memcg allocation to the root
- * cgroup until we succeed to create its own cache, but it isn't that
- * critical.
- */
- if (err && !memcg) {
+ if (err) {
+ /*
+ * There is no point in flooding logs with warnings or
+ * especially crashing the system if we fail to create a cache
+ * for a memcg. In this case we will be accounting the memcg
+ * allocation to the root cgroup until we succeed to create its
+ * own cache, but it isn't that critical.
+ */
+ if (!memcg)
+ return NULL;
+
if (flags & SLAB_PANIC)
panic("kmem_cache_create: Failed to create slab '%s'. Error %d\n",
name, err);
diff --git a/mm/slub.c b/mm/slub.c
index 34bb8c6..545a170 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1559,7 +1559,7 @@
new.freelist = freelist;
}
- VM_BUG_ON_PAGE(new.frozen, &new);
+ VM_BUG_ON(new.frozen);
new.frozen = 1;
if (!__cmpxchg_double_slab(s, page,
@@ -1812,7 +1812,7 @@
set_freepointer(s, freelist, prior);
new.counters = counters;
new.inuse--;
- VM_BUG_ON_PAGE(!new.frozen, &new);
+ VM_BUG_ON(!new.frozen);
} while (!__cmpxchg_double_slab(s, page,
prior, counters,
@@ -1840,7 +1840,7 @@
old.freelist = page->freelist;
old.counters = page->counters;
- VM_BUG_ON_PAGE(!old.frozen, &old);
+ VM_BUG_ON(!old.frozen);
/* Determine target state of the slab */
new.counters = old.counters;
@@ -1952,7 +1952,7 @@
old.freelist = page->freelist;
old.counters = page->counters;
- VM_BUG_ON_PAGE(!old.frozen, &old);
+ VM_BUG_ON(!old.frozen);
new.counters = old.counters;
new.freelist = old.freelist;
@@ -2225,7 +2225,7 @@
counters = page->counters;
new.counters = counters;
- VM_BUG_ON_PAGE(!new.frozen, &new);
+ VM_BUG_ON(!new.frozen);
new.inuse = page->objects;
new.frozen = freelist != NULL;
@@ -2319,7 +2319,7 @@
* page is pointing to the page from which the objects are obtained.
* That page must be frozen for per cpu allocations to work.
*/
- VM_BUG_ON_PAGE(!c->page->frozen, c->page);
+ VM_BUG_ON(!c->page->frozen);
c->freelist = get_freepointer(s, freelist);
c->tid = next_tid(c->tid);
local_irq_restore(flags);
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 90c4075..a9c74b4 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -147,7 +147,7 @@
}
#endif
-unsigned long zone_reclaimable_pages(struct zone *zone)
+static unsigned long zone_reclaimable_pages(struct zone *zone)
{
int nr;
@@ -3315,27 +3315,6 @@
wake_up_interruptible(&pgdat->kswapd_wait);
}
-/*
- * The reclaimable count would be mostly accurate.
- * The less reclaimable pages may be
- * - mlocked pages, which will be moved to unevictable list when encountered
- * - mapped pages, which may require several travels to be reclaimed
- * - dirty pages, which is not "instantly" reclaimable
- */
-unsigned long global_reclaimable_pages(void)
-{
- int nr;
-
- nr = global_page_state(NR_ACTIVE_FILE) +
- global_page_state(NR_INACTIVE_FILE);
-
- if (get_nr_swap_pages() > 0)
- nr += global_page_state(NR_ACTIVE_ANON) +
- global_page_state(NR_INACTIVE_ANON);
-
- return nr;
-}
-
#ifdef CONFIG_HIBERNATION
/*
* Try to free `nr_to_reclaim' of memory, system-wide, and return the number of
