* [merged] mmap-locking-api-add-mmap_lock_initializer.patch removed from -mm tree
@ 2020-06-10 0:39 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-06-10 0:39 UTC (permalink / raw)
To: daniel.m.jordan, dbueso, hughd, jgg, jglisse, jhubbard, ldufour,
Liam.Howlett, mhocko, mm-commits, peterz, rientjes, vbabka,
walken, willy, yinghan
The patch titled
Subject: mmap locking API: add MMAP_LOCK_INITIALIZER
has been removed from the -mm tree. Its filename was
mmap-locking-api-add-mmap_lock_initializer.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Michel Lespinasse <walken@google.com>
Subject: mmap locking API: add MMAP_LOCK_INITIALIZER
Define a new initializer for the mmap locking api. Initially this just
evaluates to __RWSEM_INITIALIZER as the API is defined as wrappers around
rwsem.
Link: http://lkml.kernel.org/r/20200520052908.204642-9-walken@google.com
Signed-off-by: Michel Lespinasse <walken@google.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Liam Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ying Han <yinghan@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/x86/kernel/tboot.c | 2 +-
drivers/firmware/efi/efi.c | 2 +-
include/linux/mmap_lock.h | 3 +++
mm/init-mm.c | 2 +-
4 files changed, 6 insertions(+), 3 deletions(-)
--- a/arch/x86/kernel/tboot.c~mmap-locking-api-add-mmap_lock_initializer
+++ a/arch/x86/kernel/tboot.c
@@ -93,7 +93,7 @@ static struct mm_struct tboot_mm = {
.pgd = swapper_pg_dir,
.mm_users = ATOMIC_INIT(2),
.mm_count = ATOMIC_INIT(1),
- .mmap_sem = __RWSEM_INITIALIZER(init_mm.mmap_sem),
+ MMAP_LOCK_INITIALIZER(init_mm)
.page_table_lock = __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
.mmlist = LIST_HEAD_INIT(init_mm.mmlist),
};
--- a/drivers/firmware/efi/efi.c~mmap-locking-api-add-mmap_lock_initializer
+++ a/drivers/firmware/efi/efi.c
@@ -54,7 +54,7 @@ struct mm_struct efi_mm = {
.mm_rb = RB_ROOT,
.mm_users = ATOMIC_INIT(2),
.mm_count = ATOMIC_INIT(1),
- .mmap_sem = __RWSEM_INITIALIZER(efi_mm.mmap_sem),
+ MMAP_LOCK_INITIALIZER(efi_mm)
.page_table_lock = __SPIN_LOCK_UNLOCKED(efi_mm.page_table_lock),
.mmlist = LIST_HEAD_INIT(efi_mm.mmlist),
.cpu_bitmap = { [BITS_TO_LONGS(NR_CPUS)] = 0},
--- a/include/linux/mmap_lock.h~mmap-locking-api-add-mmap_lock_initializer
+++ a/include/linux/mmap_lock.h
@@ -1,6 +1,9 @@
#ifndef _LINUX_MMAP_LOCK_H
#define _LINUX_MMAP_LOCK_H
+#define MMAP_LOCK_INITIALIZER(name) \
+ .mmap_sem = __RWSEM_INITIALIZER((name).mmap_sem),
+
static inline void mmap_init_lock(struct mm_struct *mm)
{
init_rwsem(&mm->mmap_sem);
--- a/mm/init-mm.c~mmap-locking-api-add-mmap_lock_initializer
+++ a/mm/init-mm.c
@@ -31,7 +31,7 @@ struct mm_struct init_mm = {
.pgd = swapper_pg_dir,
.mm_users = ATOMIC_INIT(2),
.mm_count = ATOMIC_INIT(1),
- .mmap_sem = __RWSEM_INITIALIZER(init_mm.mmap_sem),
+ MMAP_LOCK_INITIALIZER(init_mm)
.page_table_lock = __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
.arg_lock = __SPIN_LOCK_UNLOCKED(init_mm.arg_lock),
.mmlist = LIST_HEAD_INIT(init_mm.mmlist),
_
Patches currently in -mm which might be from walken@google.com are
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2020-06-10 0:39 [merged] mmap-locking-api-add-mmap_lock_initializer.patch removed from -mm tree akpm
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