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| author | Andi Kleen <ak@suse.de> | 2005-05-20 14:27:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-20 15:48:20 -0700 |
| commit | 7856dfeb23c16ef3d8dac8871b4d5b93c70b59b9 (patch) | |
| tree | 0e9f799c3882dce14b49356c6db10bb6f4ba1713 /include | |
| parent | c4d1fcf3a2ea89b6d6221fa8b4588c77aff50995 (diff) | |
| download | talos-obmc-linux-7856dfeb23c16ef3d8dac8871b4d5b93c70b59b9.tar.gz talos-obmc-linux-7856dfeb23c16ef3d8dac8871b4d5b93c70b59b9.zip | |
[PATCH] x86_64: Fixed guard page handling again in iounmap
Caused oopses again. Also fix potential mismatch in checking if
change_page_attr was needed.
To do it without races I needed to change mm/vmalloc.c to export a
__remove_vm_area that does not take vmlist lock.
Noticed by Terence Ripperda and based on a patch of his.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/vmalloc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 3a358c895188..6409d9cf5965 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -41,6 +41,7 @@ extern struct vm_struct *get_vm_area(unsigned long size, unsigned long flags); extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags, unsigned long start, unsigned long end); extern struct vm_struct *remove_vm_area(void *addr); +extern struct vm_struct *__remove_vm_area(void *addr); extern int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages); extern void unmap_vm_area(struct vm_struct *area); |
