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From: Suren Baghdasaryan <surenb@google.com>
To: akpm@linux-foundation.org
Cc: michel@lespinasse.org, jglisse@google.com, mhocko@suse.com,
	vbabka@suse.cz,  hannes@cmpxchg.org, mgorman@techsingularity.net,
	dave@stgolabs.net,  willy@infradead.org, liam.howlett@oracle.com,
	peterz@infradead.org,  ldufour@linux.ibm.com,
	laurent.dufour@fr.ibm.com, paulmck@kernel.org,  riel@surriel.com,
	luto@kernel.org, songliubraving@fb.com, peterx@redhat.com,
	 david@redhat.com, dhowells@redhat.com, hughd@google.com,
	 bigeasy@linutronix.de, kent.overstreet@linux.dev,
	rientjes@google.com,  axelrasmussen@google.com,
	joelaf@google.com, minchan@google.com,  surenb@google.com,
	kernel-team@android.com, linux-mm@kvack.org,
	 linux-arm-kernel@lists.infradead.org,
	linuxppc-dev@lists.ozlabs.org,  x86@kernel.org,
	linux-kernel@vger.kernel.org
Subject: [RFC PATCH 04/28] mm: move mmap_lock assert function definitions
Date: Mon, 29 Aug 2022 21:25:07 +0000	[thread overview]
Message-ID: <20220829212531.3184856-5-surenb@google.com> (raw)
In-Reply-To: <20220829212531.3184856-1-surenb@google.com>

Move mmap_lock assert function definitions up so that they can be used
by other mmap_lock routines.

Signed-off-by: Suren Baghdasaryan <surenb@google.com>
---
 include/linux/mmap_lock.h | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/include/linux/mmap_lock.h b/include/linux/mmap_lock.h
index 96e113e23d04..e49ba91bb1f0 100644
--- a/include/linux/mmap_lock.h
+++ b/include/linux/mmap_lock.h
@@ -60,6 +60,18 @@ static inline void __mmap_lock_trace_released(struct mm_struct *mm, bool write)
 
 #endif /* CONFIG_TRACING */
 
+static inline void mmap_assert_locked(struct mm_struct *mm)
+{
+	lockdep_assert_held(&mm->mmap_lock);
+	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);
+}
+
+static inline void mmap_assert_write_locked(struct mm_struct *mm)
+{
+	lockdep_assert_held_write(&mm->mmap_lock);
+	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);
+}
+
 static inline void mmap_init_lock(struct mm_struct *mm)
 {
 	init_rwsem(&mm->mmap_lock);
@@ -150,18 +162,6 @@ static inline void mmap_read_unlock_non_owner(struct mm_struct *mm)
 	up_read_non_owner(&mm->mmap_lock);
 }
 
-static inline void mmap_assert_locked(struct mm_struct *mm)
-{
-	lockdep_assert_held(&mm->mmap_lock);
-	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);
-}
-
-static inline void mmap_assert_write_locked(struct mm_struct *mm)
-{
-	lockdep_assert_held_write(&mm->mmap_lock);
-	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);
-}
-
 static inline int mmap_lock_is_contended(struct mm_struct *mm)
 {
 	return rwsem_is_contended(&mm->mmap_lock);
-- 
2.37.2.672.g94769d06f0-goog



  parent reply	other threads:[~2022-08-29 21:25 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-29 21:25 [RFC PATCH 00/28] per-VMA locks proposal Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 01/28] mm: introduce CONFIG_PER_VMA_LOCK Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 02/28] mm: rcu safe VMA freeing Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 03/28] mm: introduce __find_vma to be used without mmap_lock protection Suren Baghdasaryan
2022-08-29 21:25 ` Suren Baghdasaryan [this message]
2022-08-29 21:25 ` [RFC PATCH 05/28] mm: add per-VMA lock and helper functions to control it Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 06/28] mm: mark VMA as locked whenever vma->vm_flags are modified Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 07/28] kernel/fork: mark VMAs as locked before copying pages during fork Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 08/28] mm/khugepaged: mark VMA as locked while collapsing a hugepage Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 09/28] mm/mempolicy: mark VMA as locked when changing protection policy Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 10/28] mm/mmap: mark VMAs as locked in vma_adjust Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 11/28] mm/mmap: mark VMAs as locked before merging or splitting them Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 12/28] mm/mremap: mark VMA as locked while remapping it to a new address range Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 13/28] mm: conditionally mark VMA as locked in free_pgtables and unmap_page_range Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 14/28] mm: mark VMAs as locked before isolating them Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 15/28] mm/mmap: mark adjacent VMAs as locked if they can grow into unmapped area Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 16/28] kernel/fork: assert no VMA readers during its destruction Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 17/28] mm/mmap: prevent pagefault handler from racing with mmu_notifier registration Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 18/28] mm: add FAULT_FLAG_VMA_LOCK flag Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 19/28] mm: disallow do_swap_page to handle page faults under VMA lock Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 20/28] mm: introduce per-VMA lock statistics Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 21/28] mm: introduce find_and_lock_anon_vma to be used from arch-specific code Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 22/28] x86/mm: try VMA lock-based page fault handling first Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 23/28] x86/mm: define ARCH_SUPPORTS_PER_VMA_LOCK Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 24/28] arm64/mm: try VMA lock-based page fault handling first Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 25/28] arm64/mm: define ARCH_SUPPORTS_PER_VMA_LOCK Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 26/28] powerc/mm: try VMA lock-based page fault handling first Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 27/28] powerpc/mm: define ARCH_SUPPORTS_PER_VMA_LOCK Suren Baghdasaryan
2022-08-29 21:25 ` [RFC PATCH 28/28] kernel/fork: throttle call_rcu() calls in vm_area_free Suren Baghdasaryan

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