Messages in this thread Patch in this message | | | Date | Mon, 19 Mar 2007 19:02:26 +0100 | Subject | Re: mm snapshot broken-out-2007-03-18-02-44.tar.gz uploaded | From | Michal Piotrowski <> |
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Michal Piotrowski napisał(a): > On 19/03/07, Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote: >> On 19/03/07, Pekka J Enberg <penberg@cs.helsinki.fi> wrote: >> > On Mon, 19 Mar 2007, Michal Piotrowski wrote: >> > > Yes, revoke-special-mmap-handling.patch is bad. >> > >> > Aah, the VM_REVOKED flag stomps on VM_CAN_INVALIDATE in -mm. Changing >> > VM_REVOKED to 0x10000000 should fix it. > > Unfortunately it doesn't. 0x10000000 is used by VM_CAN_NONLINEAR. > 0x20000000 should be a better value.
Here is a tested patch.
Regards, Michal
-- Michal K. K. Piotrowski LTG - Linux Testers Group (PL) (http://www.stardust.webpages.pl/ltg/) LTG - Linux Testers Group (EN) (http://www.stardust.webpages.pl/linux_testers_group_en/)
Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Pekka J Enberg <penberg@cs.helsinki.fi>
--- linux-work1-clean/include/linux/mm.h 2007-03-19 18:52:28.000000000 +0100 +++ linux-work1/include/linux/mm.h 2007-03-19 18:23:04.000000000 +0100 @@ -173,7 +173,6 @@ extern int do_mprotect(unsigned long sta #define VM_MAPPED_COPY 0x01000000 /* T if mapped copy of data (nommu mmap) */ #define VM_INSERTPAGE 0x02000000 /* The vma has had "vm_insert_page()" done on it */ #define VM_ALWAYSDUMP 0x04000000 /* Always include in core dumps */ -#define VM_REVOKED 0x08000000 /* Mapping has been revoked */ #define VM_CAN_INVALIDATE 0x08000000 /* The mapping may be invalidated, * eg. truncate or invalidate_inode_*. @@ -181,6 +180,7 @@ extern int do_mprotect(unsigned long sta * return with the page locked. */ #define VM_CAN_NONLINEAR 0x10000000 /* Has ->fault & does nonlinear pages */ +#define VM_REVOKED 0x20000000 /* Mapping has been revoked */ #ifndef VM_STACK_DEFAULT_FLAGS /* arch can override this */ #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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