diff options
| author | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-11-25 05:57:23 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-11-25 05:57:23 -0200 |
| commit | 258d2fbf874c87830664cb7ef41f9741c1abffac (patch) | |
| tree | b351a3085a204bec28d907eaeec48fe23576ddf9 /include/linux/percpu_ida.h | |
| parent | 80f93c7b0f4599ffbdac8d964ecd1162b8b618b9 (diff) | |
| parent | 6ce4eac1f600b34f2f7f58f9cd8f0503d79e42ae (diff) | |
Merge tag 'v3.13-rc1' into patchwork
Linux 3.13-rc1
* tag 'v3.13-rc1': (11465 commits)
Linux 3.13-rc1
ALSA: hda - Set current_headset_type to ALC_HEADSET_TYPE_ENUM (janitorial)
ALSA: hda - Provide missing pin configs for VAIO with ALC260
mm: place page->pmd_huge_pte to right union
MAINTAINERS: add keyboard driver to Hyper-V file list
x86, mm: do not leak page->ptl for pmd page tables
ipc,shm: correct error return value in shmctl (SHM_UNLOCK)
mm, mempolicy: silence gcc warning
block/partitions/efi.c: fix bound check
ARM: drivers/rtc/rtc-at91rm9200.c: disable interrupts at shutdown
mm: hugetlbfs: fix hugetlbfs optimization
kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS cleanly
ipc,shm: fix shm_file deletion races
mm: thp: give transparent hugepage code a separate copy_page
checkpatch: fix "Use of uninitialized value" warnings
configfs: fix race between dentry put and lookup
gso: handle new frag_list of frags GRO packets
GFS2: Fix ref count bug relating to atomic_open
genetlink: fix genl_set_err() group ID
genetlink: fix genlmsg_multicast() bug
...
Diffstat (limited to 'include/linux/percpu_ida.h')
| -rw-r--r-- | include/linux/percpu_ida.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/include/linux/percpu_ida.h b/include/linux/percpu_ida.h index 0b23edbee309..1900bd0fa639 100644 --- a/include/linux/percpu_ida.h +++ b/include/linux/percpu_ida.h @@ -16,6 +16,8 @@ struct percpu_ida { * percpu_ida_init() */ unsigned nr_tags; + unsigned percpu_max_size; + unsigned percpu_batch_size; struct percpu_ida_cpu __percpu *tag_cpu; @@ -51,10 +53,29 @@ struct percpu_ida { } ____cacheline_aligned_in_smp; }; +/* + * Number of tags we move between the percpu freelist and the global freelist at + * a time + */ +#define IDA_DEFAULT_PCPU_BATCH_MOVE 32U +/* Max size of percpu freelist, */ +#define IDA_DEFAULT_PCPU_SIZE ((IDA_DEFAULT_PCPU_BATCH_MOVE * 3) / 2) + int percpu_ida_alloc(struct percpu_ida *pool, gfp_t gfp); void percpu_ida_free(struct percpu_ida *pool, unsigned tag); void percpu_ida_destroy(struct percpu_ida *pool); -int percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags); +int __percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags, + unsigned long max_size, unsigned long batch_size); +static inline int percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags) +{ + return __percpu_ida_init(pool, nr_tags, IDA_DEFAULT_PCPU_SIZE, + IDA_DEFAULT_PCPU_BATCH_MOVE); +} + +typedef int (*percpu_ida_cb)(unsigned, void *); +int percpu_ida_for_each_free(struct percpu_ida *pool, percpu_ida_cb fn, + void *data); +unsigned percpu_ida_free_tags(struct percpu_ida *pool, int cpu); #endif /* __PERCPU_IDA_H__ */ |