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authorLorenzo Stoakes <lorenzo.stoakes@oracle.com>2025-08-12 16:44:13 +0100
committerAndrew Morton <akpm@linux-foundation.org>2025-09-13 16:54:56 -0700
commit4141c2dc88f21881e34e0a3678fa48f0303adc5e (patch)
treeb0b2067ec581a8ebfbef8de19c8b7cffe8bbd055
parent879d0d99541f6877c4e0f532c589c39869cf7077 (diff)
mm: convert arch-specific code to mm_flags_*() accessors
As part of the effort to move to mm->flags becoming a bitmap field, convert existing users to making use of the mm_flags_*() accessors which will, when the conversion is complete, be the only means of accessing mm_struct flags. No functional change intended. [lorenzo.stoakes@oracle.com: fix typo] Link: https://lkml.kernel.org/r/f8ff8fe9-0c89-4742-bf52-d31319d948c1@lucifer.local Link: https://lkml.kernel.org/r/6e0a4563fcade8678d0fc99859b3998d4354e82f.1755012943.git.lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Acked-by: David Hildenbrand <david@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andreas Larsson <andreas@gaisler.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Barry Song <baohua@kernel.org> Cc: Ben Segall <bsegall@google.com> Cc: Borislav Betkov <bp@alien8.de> Cc: Chengming Zhou <chengming.zhou@linux.dev> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Christian Brauner <brauner@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: David S. Miller <davem@davemloft.net> Cc: Dev Jain <dev.jain@arm.com> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jan Kara <jack@suse.cz> Cc: Jann Horn <jannh@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Kees Cook <kees@kernel.org> Cc: Marc Rutland <mark.rutland@arm.com> Cc: Mariano Pache <npache@redhat.com> Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org> Cc: Mateusz Guzik <mjguzik@gmail.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Mel Gorman <mgorman <mgorman@suse.de> Cc: Michal Hocko <mhocko@suse.com> Cc: Namhyung kim <namhyung@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Xu <peterx@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shakeel Butt <shakeel.butt@linux.dev> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Thomas Gleinxer <tglx@linutronix.de> Cc: Valentin Schneider <vschneid@redhat.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: xu xin <xu.xin16@zte.com.cn> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--arch/s390/mm/mmap.c4
-rw-r--r--arch/sparc/kernel/sys_sparc_64.c4
-rw-r--r--arch/x86/mm/mmap.c4
3 files changed, 6 insertions, 6 deletions
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index 40a526d28184..547104ccc22a 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -182,10 +182,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack)
*/
if (mmap_is_legacy(rlim_stack)) {
mm->mmap_base = mmap_base_legacy(random_factor);
- clear_bit(MMF_TOPDOWN, &mm->flags);
+ mm_flags_clear(MMF_TOPDOWN, mm);
} else {
mm->mmap_base = mmap_base(random_factor, rlim_stack);
- set_bit(MMF_TOPDOWN, &mm->flags);
+ mm_flags_set(MMF_TOPDOWN, mm);
}
}
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index c5a284df7b41..785e9909340f 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -309,7 +309,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack)
gap == RLIM_INFINITY ||
sysctl_legacy_va_layout) {
mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
- clear_bit(MMF_TOPDOWN, &mm->flags);
+ mm_flags_clear(MMF_TOPDOWN, mm);
} else {
/* We know it's 32-bit */
unsigned long task_size = STACK_TOP32;
@@ -320,7 +320,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack)
gap = (task_size / 6 * 5);
mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
- set_bit(MMF_TOPDOWN, &mm->flags);
+ mm_flags_set(MMF_TOPDOWN, mm);
}
}
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 5ed2109211da..708f85dc9380 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -122,9 +122,9 @@ static void arch_pick_mmap_base(unsigned long *base, unsigned long *legacy_base,
void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack)
{
if (mmap_is_legacy())
- clear_bit(MMF_TOPDOWN, &mm->flags);
+ mm_flags_clear(MMF_TOPDOWN, mm);
else
- set_bit(MMF_TOPDOWN, &mm->flags);
+ mm_flags_set(MMF_TOPDOWN, mm);
arch_pick_mmap_base(&mm->mmap_base, &mm->mmap_legacy_base,
arch_rnd(mmap64_rnd_bits), task_size_64bit(0),