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| author | Olof Johansson <olof@lixom.net> | 2013-01-14 22:20:02 +0400 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-01-14 22:20:02 +0400 |
| commit | 8d84981e395850aab31c3f2ca7e2738e03f671d7 (patch) | |
| tree | 933425fddb23d28be802277471df3fe3f6c2711d /include/asm-generic | |
| parent | 00c82d64405631967dca3890a9ce80ab35d04cc7 (diff) | |
| parent | 77cc982f6a3b33a5aa058ad3b20cda8866db2948 (diff) | |
| download | linux-8d84981e395850aab31c3f2ca7e2738e03f671d7.tar.xz | |
Merge branch 'clocksource/cleanup' into next/cleanup
Clockevent cleanup series from Shawn Guo.
Resolved move/change conflict in mach-pxa/time.c due to the sys_timer
cleanup.
* clocksource/cleanup:
clocksource: use clockevents_config_and_register() where possible
ARM: use clockevents_config_and_register() where possible
clockevents: export clockevents_config_and_register for module use
+ sync to Linux 3.8-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/mach-pxa/time.c
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/parport.h | 4 | ||||
| -rw-r--r-- | include/asm-generic/tlb.h | 9 |
2 files changed, 11 insertions, 2 deletions
diff --git a/include/asm-generic/parport.h b/include/asm-generic/parport.h index 40528cb977e8..2c9f9d4336ca 100644 --- a/include/asm-generic/parport.h +++ b/include/asm-generic/parport.h @@ -10,8 +10,8 @@ * to devices on the PCI bus. */ -static int __devinit parport_pc_find_isa_ports(int autoirq, int autodma); -static int __devinit parport_pc_find_nonpci_ports(int autoirq, int autodma) +static int parport_pc_find_isa_ports(int autoirq, int autodma); +static int parport_pc_find_nonpci_ports(int autoirq, int autodma) { #ifdef CONFIG_ISA return parport_pc_find_isa_ports(autoirq, autodma); diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index ed6642ad03e0..25f01d0bc149 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -78,6 +78,14 @@ struct mmu_gather_batch { #define MAX_GATHER_BATCH \ ((PAGE_SIZE - sizeof(struct mmu_gather_batch)) / sizeof(void *)) +/* + * Limit the maximum number of mmu_gather batches to reduce a risk of soft + * lockups for non-preemptible kernels on huge machines when a lot of memory + * is zapped during unmapping. + * 10K pages freed at once should be safe even without a preemption point. + */ +#define MAX_GATHER_BATCH_COUNT (10000UL/MAX_GATHER_BATCH) + /* struct mmu_gather is an opaque type used by the mm code for passing around * any data needed by arch specific code for tlb_remove_page. */ @@ -96,6 +104,7 @@ struct mmu_gather { struct mmu_gather_batch *active; struct mmu_gather_batch local; struct page *__pages[MMU_GATHER_BUNDLE]; + unsigned int batch_count; }; #define HAVE_GENERIC_MMU_GATHER |