aboutsummaryrefslogtreecommitdiffstats
path: root/ipc/util.c
diff options
context:
space:
mode:
authorKevin Hilman <khilman@linaro.org>2013-10-14 18:29:10 -0400
committerKevin Hilman <khilman@linaro.org>2013-10-14 18:29:24 -0400
commit7587b5965f57c1c4d6fd1377432a8473f5cd449a (patch)
tree85b7ced77656ac142369c6436df02b51d6d13527 /ipc/util.c
parent6a9d10d529db69244baab335fb02caba3d6ebbc9 (diff)
parent8d71528343c69ce387bd5fdb4fd8dc2b9f69d97c (diff)
Merge tag 'omap-for-v3.13/quirk-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
From Tony Lindgren: Changes needed to prepare for making omap3 device tree only: - Always build in board-generic, and add pdata quirks and auxdata support for it so we have all the pdata related quirks in the same place. - Merge of the drivers/pinctrl changes that are needed for PM to continue working on omap3 and also needed for other omaps eventually. The three pinctrl related patches have been acked by Linus Walleij and are pulled into both the pinctrl tree and this branch. - Few defconfig related changes for drivers needed. * tag 'omap-for-v3.13/quirk-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (523 commits) ARM: configs: omap2plus_defconfig: enable dwc3 and dependencies ARM: OMAP2+: Add WLAN modules and of_serial to omap2plus_defconfig ARM: OMAP2+: Run make savedefconfig on omap2plus_defconfig to shrink it ARM: OMAP2+: Add minimal 8250 support for GPMC ARM: OMAP2+: Use pdata quirks for wl12xx for omap3 evm and zoom3 ARM: OMAP: Move DT wake-up event handling over to use pinctrl-single-omap ARM: OMAP2+: Add support for auxdata pinctrl: single: Add support for auxdata pinctrl: single: Add support for wake-up interrupts pinctrl: single: Prepare for supporting SoC specific features ARM: OMAP2+: igep0020: use display init from dss-common ARM: OMAP2+: pdata-quirks: add legacy display init for IGEPv2 board +Linux 3.12-rc4 Signed-off-by: Kevin Hilman <khilman@linaro.org>
Diffstat (limited to 'ipc/util.c')
-rw-r--r--ipc/util.c32
1 files changed, 12 insertions, 20 deletions
diff --git a/ipc/util.c b/ipc/util.c
index e829da9ed01f..fdb8ae740775 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -474,11 +474,6 @@ void ipc_free(void* ptr, int size)
474 kfree(ptr); 474 kfree(ptr);
475} 475}
476 476
477struct ipc_rcu {
478 struct rcu_head rcu;
479 atomic_t refcount;
480} ____cacheline_aligned_in_smp;
481
482/** 477/**
483 * ipc_rcu_alloc - allocate ipc and rcu space 478 * ipc_rcu_alloc - allocate ipc and rcu space
484 * @size: size desired 479 * @size: size desired
@@ -505,27 +500,24 @@ int ipc_rcu_getref(void *ptr)
505 return atomic_inc_not_zero(&p->refcount); 500 return atomic_inc_not_zero(&p->refcount);
506} 501}
507 502
508/** 503void ipc_rcu_putref(void *ptr, void (*func)(struct rcu_head *head))
509 * ipc_schedule_free - free ipc + rcu space
510 * @head: RCU callback structure for queued work
511 */
512static void ipc_schedule_free(struct rcu_head *head)
513{
514 vfree(container_of(head, struct ipc_rcu, rcu));
515}
516
517void ipc_rcu_putref(void *ptr)
518{ 504{
519 struct ipc_rcu *p = ((struct ipc_rcu *)ptr) - 1; 505 struct ipc_rcu *p = ((struct ipc_rcu *)ptr) - 1;
520 506
521 if (!atomic_dec_and_test(&p->refcount)) 507 if (!atomic_dec_and_test(&p->refcount))
522 return; 508 return;
523 509
524 if (is_vmalloc_addr(ptr)) { 510 call_rcu(&p->rcu, func);
525 call_rcu(&p->rcu, ipc_schedule_free); 511}
526 } else { 512
527 kfree_rcu(p, rcu); 513void ipc_rcu_free(struct rcu_head *head)
528 } 514{
515 struct ipc_rcu *p = container_of(head, struct ipc_rcu, rcu);
516
517 if (is_vmalloc_addr(p))
518 vfree(p);
519 else
520 kfree(p);
529} 521}
530 522
531/** 523/**