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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-15 07:48:18 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-15 07:48:18 +0200 |
commit | 0429fbc0bdc297d64188483ba029a23773ae07b0 (patch) | |
tree | 67de46978c90f37540dd6ded1db20eb53a569030 /drivers/s390/cio | |
parent | 6929c358972facf2999f8768815c40dd88514fc2 (diff) | |
parent | 513d1a2884a49654f368b5fa25ef186e976bdada (diff) | |
download | linux-stable-0429fbc0bdc297d64188483ba029a23773ae07b0.tar.gz linux-stable-0429fbc0bdc297d64188483ba029a23773ae07b0.tar.bz2 linux-stable-0429fbc0bdc297d64188483ba029a23773ae07b0.zip |
Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Pull percpu consistent-ops changes from Tejun Heo:
"Way back, before the current percpu allocator was implemented, static
and dynamic percpu memory areas were allocated and handled separately
and had their own accessors. The distinction has been gone for many
years now; however, the now duplicate two sets of accessors remained
with the pointer based ones - this_cpu_*() - evolving various other
operations over time. During the process, we also accumulated other
inconsistent operations.
This pull request contains Christoph's patches to clean up the
duplicate accessor situation. __get_cpu_var() uses are replaced with
with this_cpu_ptr() and __this_cpu_ptr() with raw_cpu_ptr().
Unfortunately, the former sometimes is tricky thanks to C being a bit
messy with the distinction between lvalues and pointers, which led to
a rather ugly solution for cpumask_var_t involving the introduction of
this_cpu_cpumask_var_ptr().
This converts most of the uses but not all. Christoph will follow up
with the remaining conversions in this merge window and hopefully
remove the obsolete accessors"
* 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (38 commits)
irqchip: Properly fetch the per cpu offset
percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t -fix
ia64: sn_nodepda cannot be assigned to after this_cpu conversion. Use __this_cpu_write.
percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t
Revert "powerpc: Replace __get_cpu_var uses"
percpu: Remove __this_cpu_ptr
clocksource: Replace __this_cpu_ptr with raw_cpu_ptr
sparc: Replace __get_cpu_var uses
avr32: Replace __get_cpu_var with __this_cpu_write
blackfin: Replace __get_cpu_var uses
tile: Use this_cpu_ptr() for hardware counters
tile: Replace __get_cpu_var uses
powerpc: Replace __get_cpu_var uses
alpha: Replace __get_cpu_var
ia64: Replace __get_cpu_var uses
s390: cio driver &__get_cpu_var replacements
s390: Replace __get_cpu_var uses
mips: Replace __get_cpu_var uses
MIPS: Replace __get_cpu_var uses in FPU emulator.
arm: Replace __this_cpu_ptr with raw_cpu_ptr
...
Diffstat (limited to 'drivers/s390/cio')
-rw-r--r-- | drivers/s390/cio/ccwreq.c | 2 | ||||
-rw-r--r-- | drivers/s390/cio/chsc_sch.c | 2 | ||||
-rw-r--r-- | drivers/s390/cio/cio.c | 6 | ||||
-rw-r--r-- | drivers/s390/cio/device_fsm.c | 4 | ||||
-rw-r--r-- | drivers/s390/cio/eadm_sch.c | 2 |
5 files changed, 8 insertions, 8 deletions
diff --git a/drivers/s390/cio/ccwreq.c b/drivers/s390/cio/ccwreq.c index 07676c22d514..79f59915f71b 100644 --- a/drivers/s390/cio/ccwreq.c +++ b/drivers/s390/cio/ccwreq.c @@ -252,7 +252,7 @@ static void ccwreq_log_status(struct ccw_device *cdev, enum io_status status) */ void ccw_request_handler(struct ccw_device *cdev) { - struct irb *irb = &__get_cpu_var(cio_irb); + struct irb *irb = this_cpu_ptr(&cio_irb); struct ccw_request *req = &cdev->private->req; enum io_status status; int rc = -EOPNOTSUPP; diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index 3d22d2a4ce14..213159dec89e 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -58,7 +58,7 @@ static void chsc_subchannel_irq(struct subchannel *sch) { struct chsc_private *private = dev_get_drvdata(&sch->dev); struct chsc_request *request = private->request; - struct irb *irb = &__get_cpu_var(cio_irb); + struct irb *irb = this_cpu_ptr(&cio_irb); CHSC_LOG(4, "irb"); CHSC_LOG_HEX(4, irb, sizeof(*irb)); diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index d5a6f287d2fe..10eb738fc81a 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -563,7 +563,7 @@ static irqreturn_t do_cio_interrupt(int irq, void *dummy) set_cpu_flag(CIF_NOHZ_DELAY); tpi_info = (struct tpi_info *) &get_irq_regs()->int_code; - irb = &__get_cpu_var(cio_irb); + irb = this_cpu_ptr(&cio_irb); sch = (struct subchannel *)(unsigned long) tpi_info->intparm; if (!sch) { /* Clear pending interrupt condition. */ @@ -613,7 +613,7 @@ void cio_tsch(struct subchannel *sch) struct irb *irb; int irq_context; - irb = &__get_cpu_var(cio_irb); + irb = this_cpu_ptr(&cio_irb); /* Store interrupt response block to lowcore. */ if (tsch(sch->schid, irb) != 0) /* Not status pending or not operational. */ @@ -751,7 +751,7 @@ __clear_io_subchannel_easy(struct subchannel_id schid) struct tpi_info ti; if (tpi(&ti)) { - tsch(ti.schid, &__get_cpu_var(cio_irb)); + tsch(ti.schid, this_cpu_ptr(&cio_irb)); if (schid_equal(&ti.schid, &schid)) return 0; } diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 0bc902b3cd84..83da53c8e54c 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -739,7 +739,7 @@ ccw_device_irq(struct ccw_device *cdev, enum dev_event dev_event) struct irb *irb; int is_cmd; - irb = &__get_cpu_var(cio_irb); + irb = this_cpu_ptr(&cio_irb); is_cmd = !scsw_is_tm(&irb->scsw); /* Check for unsolicited interrupt. */ if (!scsw_is_solicited(&irb->scsw)) { @@ -805,7 +805,7 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event) { struct irb *irb; - irb = &__get_cpu_var(cio_irb); + irb = this_cpu_ptr(&cio_irb); /* Check for unsolicited interrupt. */ if (scsw_stctl(&irb->scsw) == (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c index c4f7bf3e24c2..37f0834300ea 100644 --- a/drivers/s390/cio/eadm_sch.c +++ b/drivers/s390/cio/eadm_sch.c @@ -134,7 +134,7 @@ static void eadm_subchannel_irq(struct subchannel *sch) { struct eadm_private *private = get_eadm_private(sch); struct eadm_scsw *scsw = &sch->schib.scsw.eadm; - struct irb *irb = &__get_cpu_var(cio_irb); + struct irb *irb = this_cpu_ptr(&cio_irb); int error = 0; EADM_LOG(6, "irq"); |