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Merge tag 'v3.9-rc5' into wq/for-3.10
Writeback conversion to workqueue will be based on top of wq/for-3.10 branch to take advantage of custom attrs and NUMA support for unbound workqueues. Mainline currently contains two commits which result in non-trivial merge conflicts with wq/for-3.10 and because block/for-3.10/core is based on v3.9-rc3 which contains one of the conflicting commits, we need a pre-merge-window merge anyway. Let's pull v3.9-rc5 into wq/for-3.10 so that the block tree doesn't suffer from workqueue merge conflicts. The two conflicts and their resolutions: *e68035fb65("workqueue: convert to idr_alloc()") in mainline changes worker_pool_assign_id() to use idr_alloc() instead of the old idr interface. worker_pool_assign_id() goes through multiple locking changes in wq/for-3.10 causing the following conflict. static int worker_pool_assign_id(struct worker_pool *pool) { int ret; <<<<<<< HEAD lockdep_assert_held(&wq_pool_mutex); do { if (!idr_pre_get(&worker_pool_idr, GFP_KERNEL)) return -ENOMEM; ret = idr_get_new(&worker_pool_idr, pool, &pool->id); } while (ret == -EAGAIN); ======= mutex_lock(&worker_pool_idr_mutex); ret = idr_alloc(&worker_pool_idr, pool, 0, 0, GFP_KERNEL); if (ret >= 0) pool->id = ret; mutex_unlock(&worker_pool_idr_mutex); >>>>>>> c67bf5361e7e66a0ff1f4caf95f89347d55dfb89 return ret < 0 ? ret : 0; } We want locking from the former and idr_alloc() usage from the latter, which can be combined to the following. static int worker_pool_assign_id(struct worker_pool *pool) { int ret; lockdep_assert_held(&wq_pool_mutex); ret = idr_alloc(&worker_pool_idr, pool, 0, 0, GFP_KERNEL); if (ret >= 0) { pool->id = ret; return 0; } return ret; } *eb2834285c("workqueue: fix possible pool stall bug in wq_unbind_fn()") updated wq_unbind_fn() such that it has single larger for_each_std_worker_pool() loop instead of two separate loops with a schedule() call inbetween. wq/for-3.10 renamed pool->assoc_mutex to pool->manager_mutex causing the following conflict (earlier function body and comments omitted for brevity). static void wq_unbind_fn(struct work_struct *work) { ... spin_unlock_irq(&pool->lock); <<<<<<< HEAD mutex_unlock(&pool->manager_mutex); } ======= mutex_unlock(&pool->assoc_mutex); >>>>>>> c67bf5361e7e66a0ff1f4caf95f89347d55dfb89 schedule(); <<<<<<< HEAD for_each_cpu_worker_pool(pool, cpu) ======= >>>>>>> c67bf5361e7e66a0ff1f4caf95f89347d55dfb89 atomic_set(&pool->nr_running, 0); spin_lock_irq(&pool->lock); wake_up_worker(pool); spin_unlock_irq(&pool->lock); } } The resolution is mostly trivial. We want the control flow of the latter with the rename of the former. static void wq_unbind_fn(struct work_struct *work) { ... spin_unlock_irq(&pool->lock); mutex_unlock(&pool->manager_mutex); schedule(); atomic_set(&pool->nr_running, 0); spin_lock_irq(&pool->lock); wake_up_worker(pool); spin_unlock_irq(&pool->lock); } } Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo
@@ -953,11 +953,11 @@ S: Blacksburg, Virginia 24061
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S: USA
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N: Randy Dunlap
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E: rdunlap@xenotime.net
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W: http://www.xenotime.net/linux/linux.html
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W: http://www.linux-usb.org
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E: rdunlap@infradead.org
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W: http://www.infradead.org/~rdunlap/
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D: Linux-USB subsystem, USB core/UHCI/printer/storage drivers
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D: x86 SMP, ACPI, bootflag hacking
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D: documentation, builds
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S: (ask for current address)
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S: USA
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@@ -1510,6 +1510,14 @@ D: Natsemi ethernet
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D: Cobalt Networks (x86) support
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D: This-and-That
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N: Mark M. Hoffman
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E: mhoffman@lightlink.com
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D: asb100, lm93 and smsc47b397 hardware monitoring drivers
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D: hwmon subsystem core
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D: hwmon subsystem maintainer
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D: i2c-sis96x and i2c-stub SMBus drivers
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S: USA
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N: Dirk Hohndel
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E: hohndel@suse.de
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D: The XFree86[tm] Project
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@@ -60,8 +60,7 @@ own source tree. For example:
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"dontdiff" is a list of files which are generated by the kernel during
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the build process, and should be ignored in any diff(1)-generated
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patch. The "dontdiff" file is included in the kernel tree in
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2.6.12 and later. For earlier kernel versions, you can get it
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from <http://www.xenotime.net/linux/doc/dontdiff>.
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2.6.12 and later.
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Make sure your patch does not include any extra files which do not
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belong in a patch submission. Make sure to review your patch -after-
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@@ -30,6 +30,7 @@ The target is named "raid" and it accepts the following parameters:
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raid10 Various RAID10 inspired algorithms chosen by additional params
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- RAID10: Striped Mirrors (aka 'Striping on top of mirrors')
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- RAID1E: Integrated Adjacent Stripe Mirroring
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- RAID1E: Integrated Offset Stripe Mirroring
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- and other similar RAID10 variants
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Reference: Chapter 4 of
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@@ -64,15 +65,15 @@ The target is named "raid" and it accepts the following parameters:
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synchronisation state for each region.
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[raid10_copies <# copies>]
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[raid10_format near]
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[raid10_format <near|far|offset>]
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These two options are used to alter the default layout of
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a RAID10 configuration. The number of copies is can be
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specified, but the default is 2. There are other variations
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to how the copies are laid down - the default and only current
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option is "near". Near copies are what most people think of
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with respect to mirroring. If these options are left
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unspecified, or 'raid10_copies 2' and/or 'raid10_format near'
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are given, then the layouts for 2, 3 and 4 devices are:
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specified, but the default is 2. There are also three
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variations to how the copies are laid down - the default
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is "near". Near copies are what most people think of with
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respect to mirroring. If these options are left unspecified,
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or 'raid10_copies 2' and/or 'raid10_format near' are given,
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then the layouts for 2, 3 and 4 devices are:
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2 drives 3 drives 4 drives
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-------- ---------- --------------
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A1 A1 A1 A1 A2 A1 A1 A2 A2
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@@ -85,6 +86,33 @@ The target is named "raid" and it accepts the following parameters:
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3-device layout is what might be called a 'RAID1E - Integrated
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Adjacent Stripe Mirroring'.
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If 'raid10_copies 2' and 'raid10_format far', then the layouts
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for 2, 3 and 4 devices are:
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2 drives 3 drives 4 drives
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-------- -------------- --------------------
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A1 A2 A1 A2 A3 A1 A2 A3 A4
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A3 A4 A4 A5 A6 A5 A6 A7 A8
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A5 A6 A7 A8 A9 A9 A10 A11 A12
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.. .. .. .. .. .. .. .. ..
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A2 A1 A3 A1 A2 A2 A1 A4 A3
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A4 A3 A6 A4 A5 A6 A5 A8 A7
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A6 A5 A9 A7 A8 A10 A9 A12 A11
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.. .. .. .. .. .. .. .. ..
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If 'raid10_copies 2' and 'raid10_format offset', then the
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layouts for 2, 3 and 4 devices are:
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2 drives 3 drives 4 drives
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-------- ------------ -----------------
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A1 A2 A1 A2 A3 A1 A2 A3 A4
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A2 A1 A3 A1 A2 A2 A1 A4 A3
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A3 A4 A4 A5 A6 A5 A6 A7 A8
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A4 A3 A6 A4 A5 A6 A5 A8 A7
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A5 A6 A7 A8 A9 A9 A10 A11 A12
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A6 A5 A9 A7 A8 A10 A9 A12 A11
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.. .. .. .. .. .. .. .. ..
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Here we see layouts closely akin to 'RAID1E - Integrated
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Offset Stripe Mirroring'.
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<#raid_devs>: The number of devices composing the array.
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Each device consists of two entries. The first is the device
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containing the metadata (if any); the second is the one containing the
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@@ -142,3 +170,5 @@ Version History
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1.3.0 Added support for RAID 10
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1.3.1 Allow device replacement/rebuild for RAID 10
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1.3.2 Fix/improve redundancy checking for RAID10
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1.4.0 Non-functional change. Removes arg from mapping function.
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1.4.1 Add RAID10 "far" and "offset" algorithm support.
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@@ -13,9 +13,6 @@ Required parent device properties:
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4 = active high level-sensitive
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8 = active low level-sensitive
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Optional parent device properties:
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- reg : contains the PRCMU mailbox address for the AB8500 i2c port
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The AB8500 consists of a large and varied group of sub-devices:
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Device IRQ Names Supply Names Description
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@@ -86,9 +83,8 @@ Non-standard child device properties:
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- stericsson,amic2-bias-vamic1 : Analoge Mic wishes to use a non-standard Vamic
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- stericsson,earpeice-cmv : Earpeice voltage (only: 950 | 1100 | 1270 | 1580)
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ab8500@5 {
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ab8500 {
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compatible = "stericsson,ab8500";
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reg = <5>; /* mailbox 5 is i2c */
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interrupts = <0 40 0x4>;
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interrupt-controller;
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#interrupt-cells = <2>;
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@@ -11,6 +11,9 @@ Required properties:
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- "nvidia,tegra20-uart"
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- "nxp,lpc3220-uart"
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- "ibm,qpace-nwp-serial"
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- "altr,16550-FIFO32"
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- "altr,16550-FIFO64"
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- "altr,16550-FIFO128"
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- "serial" if the port type is unknown.
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- reg : offset and length of the register set for the device.
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- interrupts : should contain uart interrupt.
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@@ -15,7 +15,7 @@ Supported chips:
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Addresses scanned: -
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Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -4,9 +4,14 @@ Kernel driver adt7410
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Supported chips:
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* Analog Devices ADT7410
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Prefix: 'adt7410'
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Addresses scanned: I2C 0x48 - 0x4B
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Addresses scanned: None
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Datasheet: Publicly available at the Analog Devices website
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http://www.analog.com/static/imported-files/data_sheets/ADT7410.pdf
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* Analog Devices ADT7420
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Prefix: 'adt7420'
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Addresses scanned: None
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Datasheet: Publicly available at the Analog Devices website
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http://www.analog.com/static/imported-files/data_sheets/ADT7420.pdf
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Author: Hartmut Knaack <knaack.h@gmx.de>
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@@ -27,6 +32,10 @@ value per second or even justget one sample on demand for power saving.
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Besides, it can completely power down its ADC, if power management is
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required.
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The ADT7420 is register compatible, the only differences being the package,
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a slightly narrower operating temperature range (-40°C to +150°C), and a
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better accuracy (0.25°C instead of 0.50°C.)
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Configuration Notes
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-------------------
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@@ -49,7 +49,7 @@ Supported chips:
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Addresses scanned: I2C 0x18 - 0x1f
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Author:
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Guenter Roeck <guenter.roeck@ericsson.com>
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Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -8,7 +8,7 @@ Supported devices:
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Documentation:
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http://www.lineagepower.com/oem/pdf/CPLI2C.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -19,7 +19,7 @@ Supported chips:
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Datasheet:
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http://www.national.com/pf/LM/LM5066.html
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -23,7 +23,7 @@ Supported chips:
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Datasheet: Publicly available at the Maxim website
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http://www.maxim-ic.com/
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* Microchip (TelCom) TCN75
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Prefix: 'lm75'
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Prefix: 'tcn75'
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Addresses scanned: none
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Datasheet: Publicly available at the Microchip website
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http://www.microchip.com/
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@@ -5,13 +5,13 @@ Supported chips:
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* Linear Technology LTC2978
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Prefix: 'ltc2978'
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Addresses scanned: -
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Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf
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Datasheet: http://www.linear.com/product/ltc2978
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* Linear Technology LTC3880
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Prefix: 'ltc3880'
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Addresses scanned: -
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Datasheet: http://cds.linear.com/docs/Datasheet/3880f.pdf
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Datasheet: http://www.linear.com/product/ltc3880
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -8,7 +8,7 @@ Supported chips:
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Datasheet:
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http://cds.linear.com/docs/Datasheet/42612fb.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -7,7 +7,7 @@ Supported chips:
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Addresses scanned: -
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Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX16064.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -24,7 +24,7 @@ Supported chips:
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http://datasheets.maxim-ic.com/en/ds/MAX16070-MAX16071.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -27,7 +27,7 @@ Supported chips:
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Addresses scanned: -
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Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34461.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -7,7 +7,7 @@ Supported chips:
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Addresses scanned: -
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Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8688.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -34,7 +34,7 @@ Supported chips:
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Addresses scanned: -
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Datasheet: n.a.
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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@@ -29,7 +29,7 @@ Supported chips:
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http://www.summitmicro.com/prod_select/summary/SMM766/SMM766_2086.pdf
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http://www.summitmicro.com/prod_select/summary/SMM766B/SMM766B_2122.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Module Parameters
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@@ -11,7 +11,7 @@ Supported chips:
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http://focus.ti.com/lit/ds/symlink/ucd9090.pdf
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http://focus.ti.com/lit/ds/symlink/ucd90910.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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||||
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Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user