diff options
| -rw-r--r-- | include/linux/hugetlb.h | 6 | ||||
| -rw-r--r-- | mm/hugetlb.c | 12 |
2 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index a596aaa178d1..f0ab4ca4ecf2 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -175,6 +175,7 @@ extern int sysctl_hugetlb_shm_group; extern struct list_head huge_boot_pages[MAX_NUMNODES]; void hugetlb_bootmem_alloc(void); +bool hugetlb_bootmem_allocated(void); /* arch callbacks */ @@ -1263,6 +1264,11 @@ static inline bool hugetlbfs_pagecache_present( static inline void hugetlb_bootmem_alloc(void) { } + +static inline bool hugetlb_bootmem_allocated(void) +{ + return false; +} #endif /* CONFIG_HUGETLB_PAGE */ static inline spinlock_t *huge_pte_lock(struct hstate *h, diff --git a/mm/hugetlb.c b/mm/hugetlb.c index e4bf06f13178..826af96455aa 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -4918,16 +4918,28 @@ static int __init default_hugepagesz_setup(char *s) } hugetlb_early_param("default_hugepagesz", default_hugepagesz_setup); +static bool __hugetlb_bootmem_allocated __initdata; + +bool __init hugetlb_bootmem_allocated(void) +{ + return __hugetlb_bootmem_allocated; +} + void __init hugetlb_bootmem_alloc(void) { struct hstate *h; + if (__hugetlb_bootmem_allocated) + return; + hugetlb_parse_params(); for_each_hstate(h) { if (hstate_is_gigantic(h)) hugetlb_hstate_alloc_pages(h); } + + __hugetlb_bootmem_allocated = true; } static unsigned int allowed_mems_nr(struct hstate *h) |