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authorNicolas Pitre <nicolas.pitre@linaro.org>2011-08-25 08:24:21 +0400
committerNicolas Pitre <nico@fluxnic.net>2011-11-18 22:51:22 +0400
commitbe9b7335e70696bee731c152429b1737e42fe163 (patch)
tree46b48be6c58d4ff7b2b1d2a59f0d81cd5646a0ed /include/linux/vmalloc.h
parent55a8173cfe1c6b489f8f5705282c762aed2e265e (diff)
downloadlinux-be9b7335e70696bee731c152429b1737e42fe163.tar.xz
mm: add vm_area_add_early()
The existing vm_area_register_early() allows for early vmalloc space allocation. However upcoming cleanups in the ARM architecture require that some fixed locations in the vmalloc area be reserved also very early. The name "vm_area_register_early" would have been a good name for the reservation part without the allocation. Since it is already in use with different semantics, let's create vm_area_add_early() instead. Both vm_area_register_early() and vm_area_add_early() can be used together meaning that the former is now implemented using the later where it is ensured that no conflicting areas are added, but no attempt is made to make the allocation scheme in vm_area_register_early() more sophisticated. After all, you must know what you're doing when using those functions. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Andrew Morton <akpm@linux-foundation.org> Cc: linux-mm@kvack.org
Diffstat (limited to 'include/linux/vmalloc.h')
-rw-r--r--include/linux/vmalloc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 687fb11e2010..4115d6aa80be 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -131,6 +131,7 @@ extern long vwrite(char *buf, char *addr, unsigned long count);
*/
extern rwlock_t vmlist_lock;
extern struct vm_struct *vmlist;
+extern __init void vm_area_add_early(struct vm_struct *vm);
extern __init void vm_area_register_early(struct vm_struct *vm, size_t align);
#ifdef CONFIG_SMP