The patch titled Subject: mm: use mm_populate() when adjusting brk with MCL_FUTURE in effect has been removed from the -mm tree. Its filename was mm-use-mm_populate-when-adjusting-brk-with-mcl_future-in-effect.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Michel Lespinasse <walken@xxxxxxxxxx> Subject: mm: use mm_populate() when adjusting brk with MCL_FUTURE in effect Signed-off-by: Michel Lespinasse <walken@xxxxxxxxxx> Acked-by: Rik van Riel <riel@xxxxxxxxxx> Tested-by: Andy Lutomirski <luto@xxxxxxxxxxxxxx> Cc: Greg Ungerer <gregungerer@xxxxxxxxxxxxxx> Cc: David Howells <dhowells@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/mmap.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff -puN mm/mmap.c~mm-use-mm_populate-when-adjusting-brk-with-mcl_future-in-effect mm/mmap.c --- a/mm/mmap.c~mm-use-mm_populate-when-adjusting-brk-with-mcl_future-in-effect +++ a/mm/mmap.c @@ -256,6 +256,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) unsigned long newbrk, oldbrk; struct mm_struct *mm = current->mm; unsigned long min_brk; + bool populate; down_write(&mm->mmap_sem); @@ -305,8 +306,15 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) /* Ok, looks good - let it rip. */ if (do_brk(oldbrk, newbrk-oldbrk) != oldbrk) goto out; + set_brk: mm->brk = brk; + populate = newbrk > oldbrk && (mm->def_flags & VM_LOCKED) != 0; + up_write(&mm->mmap_sem); + if (populate) + mm_populate(oldbrk, newbrk - oldbrk); + return brk; + out: retval = mm->brk; up_write(&mm->mmap_sem); @@ -2600,10 +2608,8 @@ static unsigned long do_brk(unsigned lon out: perf_event_mmap(vma); mm->total_vm += len >> PAGE_SHIFT; - if (flags & VM_LOCKED) { - if (!mlock_vma_pages_range(vma, addr, addr + len)) - mm->locked_vm += (len >> PAGE_SHIFT); - } + if (flags & VM_LOCKED) + mm->locked_vm += (len >> PAGE_SHIFT); return addr; } @@ -2611,10 +2617,14 @@ unsigned long vm_brk(unsigned long addr, { struct mm_struct *mm = current->mm; unsigned long ret; + bool populate; down_write(&mm->mmap_sem); ret = do_brk(addr, len); + populate = ((mm->def_flags & VM_LOCKED) != 0); up_write(&mm->mmap_sem); + if (populate) + mm_populate(addr, len); return ret; } EXPORT_SYMBOL(vm_brk); _ Patches currently in -mm which might be from walken@xxxxxxxxxx are origin.patch linux-next.patch mm-remove-free_area_cache-use-in-powerpc-architecture.patch mm-use-vm_unmapped_area-on-powerpc-architecture.patch mm-use-vm_unmapped_area-on-ia64-architecture.patch mm-use-vm_unmapped_area-in-hugetlbfs-on-ia64-architecture.patch mm-use-vm_unmapped_area-on-parisc-architecture.patch mm-remove-free_area_cache.patch mm-accelerate-munlock-treatment-of-thp-pages.patch mm-use-vm_unmapped_area-on-frv-architecture.patch mtd-mtd_nandecctest-use-prandom_bytes-instead-of-get_random_bytes.patch mtd-mtd_oobtest-convert-to-use-prandom-library.patch mtd-mtd_pagetest-convert-to-use-prandom-library.patch mtd-mtd_speedtest-use-prandom_bytes.patch mtd-mtd_subpagetest-convert-to-use-prandom-library.patch mtd-mtd_stresstest-use-prandom_bytes.patch mutex-subsystem-synchro-test-module.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