Hi all,
This is v2 othe the arch_mmap_hint() series.
Changes in v2:
- MAP_FIXED case is also handled in arch_mmap_hint() since this is just a
special case of the hint addr being "enforced", per Yang Shi.
- Consolidate most of the error handling in arch_mmap_hint().
- Patch 16 ("mm: Fallback to generic_mmap_hint()") was folded into
Patch 2 ("mm: x86: Introduce arch_mmap_hint()")
v1: https://lore.kernel.org/r/20241210024119.2488608-1-kaleshsingh@xxxxxxxxxx/
=======
This series introduces arch_mmap_hint() to handle allocating VA space
for the hint address.
Patches 1-16 introduce this new helper and Patch 17 uses it to fix the
issue of mmap hint being ignored in some cases due to THP alignment [1]
[1] https://lore.kernel.org/r/20241118214650.3667577-1-kaleshsingh@xxxxxxxxxx/
Thanks,
Kalesh
Kalesh Singh (16):
mm: Introduce generic_mmap_hint()
mm: x86: Introduce arch_mmap_hint()
mm: arm: Introduce arch_mmap_hint()
mm: alpha: Introduce arch_mmap_hint()
mm: arc: Use generic_mmap_hint()
mm: csky: Introduce arch_mmap_hint()
mm: loongarch: Introduce arch_mmap_hint()
mm: mips: Introduce arch_align_mmap_hint()
mm: parisc: Introduce arch_align_mmap_hint()
mm: s390: Use generic_mmap_hint()
mm: sh: Introduce arch_mmap_hint()
mm: sparc32: Introduce arch_mmap_hint()
mm: sparc64: Introduce arch_mmap_hint()
mm: xtensa: Introduce arch_mmap_hint()
mm: powerpc: Introduce arch_mmap_hint()
mm: Respect mmap hint before THP alignment if allocation is possible
arch/alpha/include/asm/pgtable.h | 1 +
arch/alpha/kernel/osf_sys.c | 31 +++---
arch/arc/include/asm/pgtable.h | 1 +
arch/arc/mm/mmap.c | 43 +++++----
arch/arm/include/asm/pgtable.h | 1 +
arch/arm/mm/mmap.c | 107 +++++++++------------
arch/csky/abiv1/inc/abi/pgtable-bits.h | 1 +
arch/csky/abiv1/mmap.c | 68 +++++++------
arch/loongarch/include/asm/pgtable.h | 1 +
arch/loongarch/mm/mmap.c | 49 +++++-----
arch/mips/include/asm/pgtable.h | 1 +
arch/mips/mm/mmap.c | 50 +++++-----
arch/parisc/include/asm/pgtable.h | 1 +
arch/parisc/kernel/sys_parisc.c | 53 +++++-----
arch/powerpc/include/asm/book3s/64/slice.h | 1 +
arch/powerpc/mm/book3s64/slice.c | 31 ++++++
arch/s390/include/asm/pgtable.h | 1 +
arch/s390/mm/mmap.c | 51 +++++-----
arch/sh/include/asm/pgtable.h | 1 +
arch/sh/mm/mmap.c | 83 ++++++----------
arch/sparc/include/asm/pgtable_32.h | 1 +
arch/sparc/include/asm/pgtable_64.h | 1 +
arch/sparc/kernel/sys_sparc_32.c | 33 ++++---
arch/sparc/kernel/sys_sparc_64.c | 96 +++++++-----------
arch/x86/include/asm/pgtable_64.h | 1 +
arch/x86/kernel/sys_x86_64.c | 64 ++++++------
arch/xtensa/kernel/syscall.c | 31 ++++--
include/linux/sched/mm.h | 9 ++
mm/huge_memory.c | 17 ++--
mm/mmap.c | 86 +++++++++++------
30 files changed, 491 insertions(+), 424 deletions(-)
--
2.47.0.338.g60cca15819-goog
