Subject: [merged] mmap-arch_get_unmapped_area-use-proper-mmap-base-for-bottom-up-direction.patch removed from -mm tree To: heiko.carstens@xxxxxxxxxx,catalin.marinas@xxxxxxx,cmetcalf@xxxxxxxxxx,schwidefsky@xxxxxxxxxx,sinaelgl@xxxxxxxxx,walken@xxxxxxxxxx,will.deacon@xxxxxxx,mm-commits@xxxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Wed, 13 Nov 2013 12:38:54 -0800 The patch titled Subject: mmap: arch_get_unmapped_area(): use proper mmap base for bottom up direction has been removed from the -mm tree. Its filename was mmap-arch_get_unmapped_area-use-proper-mmap-base-for-bottom-up-direction.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Heiko Carstens <heiko.carstens@xxxxxxxxxx> Subject: mmap: arch_get_unmapped_area(): use proper mmap base for bottom up direction This is more or less the generic variant of 41aacc1eea ("x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member"). So effectively architectures which use an own arch_pick_mmap_layout() implementation but call the generic arch_get_unmapped_area() now can also randomize their mmap_base. All architectures which have an own arch_pick_mmap_layout() and call the generic arch_get_unmapped_area() (arm64, s390, tile) currently set mmap_base to TASK_UNMAPPED_BASE. This is also true for the generic arch_pick_mmap_layout() function. So this change is a no-op currently. Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx> Cc: Radu Caragea <sinaelgl@xxxxxxxxx> Cc: Michel Lespinasse <walken@xxxxxxxxxx> Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Will Deacon <will.deacon@xxxxxxx> Cc: Chris Metcalf <cmetcalf@xxxxxxxxxx> Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/mmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN mm/mmap.c~mmap-arch_get_unmapped_area-use-proper-mmap-base-for-bottom-up-direction mm/mmap.c --- a/mm/mmap.c~mmap-arch_get_unmapped_area-use-proper-mmap-base-for-bottom-up-direction +++ a/mm/mmap.c @@ -1872,7 +1872,7 @@ arch_get_unmapped_area(struct file *filp info.flags = 0; info.length = len; - info.low_limit = TASK_UNMAPPED_BASE; + info.low_limit = mm->mmap_base; info.high_limit = TASK_SIZE; info.align_mask = 0; return vm_unmapped_area(&info); _ Patches currently in -mm which might be from heiko.carstens@xxxxxxxxxx are origin.patch linux-next.patch x86-add-missed-pgtable_pmd_page_ctor-dtor-calls-for-preallocated-pmds.patch s390-handle-pgtable_page_ctor-fail.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html