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author | Arnd Bergmann <arnd@arndb.de> | 2012-01-09 20:16:29 +0400 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-01-09 20:16:29 +0400 |
commit | dcf7ec5ee62a78123057a1e286c88ca739717409 (patch) | |
tree | fa3f19434638a942ba66d236dde4d9aaadf8b370 /mm/vmalloc.c | |
parent | 15db3e823c3246e3bd31fe454f5c8927eb85caf2 (diff) | |
parent | 142f2101a86ade2d6c9dfbedf82e1b5b31c8fce6 (diff) | |
download | linux-dcf7ec5ee62a78123057a1e286c88ca739717409.tar.xz |
Merge branch 'samsung/driver' into next/drivers
Conflicts:
arch/arm/mach-mxs/include/mach/common.h
Pull in previous samsung conflict merges and do a trivial
merge of an mxs double-add conflict.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'mm/vmalloc.c')
-rw-r--r-- | mm/vmalloc.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 1d8b32f07139..21fdf46ad5aa 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -1118,6 +1118,32 @@ void *vm_map_ram(struct page **pages, unsigned int count, int node, pgprot_t pro EXPORT_SYMBOL(vm_map_ram); /** + * vm_area_add_early - add vmap area early during boot + * @vm: vm_struct to add + * + * This function is used to add fixed kernel vm area to vmlist before + * vmalloc_init() is called. @vm->addr, @vm->size, and @vm->flags + * should contain proper values and the other fields should be zero. + * + * DO NOT USE THIS FUNCTION UNLESS YOU KNOW WHAT YOU'RE DOING. + */ +void __init vm_area_add_early(struct vm_struct *vm) +{ + struct vm_struct *tmp, **p; + + BUG_ON(vmap_initialized); + for (p = &vmlist; (tmp = *p) != NULL; p = &tmp->next) { + if (tmp->addr >= vm->addr) { + BUG_ON(tmp->addr < vm->addr + vm->size); + break; + } else + BUG_ON(tmp->addr + tmp->size > vm->addr); + } + vm->next = *p; + *p = vm; +} + +/** * vm_area_register_early - register vmap area early during boot * @vm: vm_struct to register * @align: requested alignment @@ -1139,8 +1165,7 @@ void __init vm_area_register_early(struct vm_struct *vm, size_t align) vm->addr = (void *)addr; - vm->next = vmlist; - vmlist = vm; + vm_area_add_early(vm); } void __init vmalloc_init(void) @@ -1290,7 +1315,7 @@ static struct vm_struct *__get_vm_area_node(unsigned long size, unsigned long align, unsigned long flags, unsigned long start, unsigned long end, int node, gfp_t gfp_mask, void *caller) { - static struct vmap_area *va; + struct vmap_area *va; struct vm_struct *area; BUG_ON(in_interrupt()); |