From: Muchun Song <songmuchun@bytedance.com>
To: corbet@lwn.net, mike.kravetz@oracle.com, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com,
dave.hansen@linux.intel.com, luto@kernel.org,
peterz@infradead.org, viro@zeniv.linux.org.uk,
akpm@linux-foundation.org, paulmck@kernel.org,
mchehab+huawei@kernel.org, pawan.kumar.gupta@linux.intel.com,
rdunlap@infradead.org, oneukum@suse.com,
anshuman.khandual@arm.com, jroedel@suse.de,
almasrymina@google.com, rientjes@google.com, willy@infradead.org,
osalvador@suse.de, mhocko@suse.com, song.bao.hua@hisilicon.com,
david@redhat.com, naoya.horiguchi@nec.com
Cc: duanxiongchun@bytedance.com, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org,
Muchun Song <songmuchun@bytedance.com>
Subject: [PATCH v12 03/13] mm: Introduce VM_WARN_ON_PAGE macro
Date: Wed, 6 Jan 2021 22:19:21 +0800 [thread overview]
Message-ID: <20210106141931.73931-4-songmuchun@bytedance.com> (raw)
In-Reply-To: <20210106141931.73931-1-songmuchun@bytedance.com>
Very similar to VM_WARN_ON_ONCE_PAGE and VM_BUG_ON_PAGE, add
VM_WARN_ON_PAGE macro.
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
---
include/linux/mmdebug.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h
index 5d0767cb424a..eff5b13a6945 100644
--- a/include/linux/mmdebug.h
+++ b/include/linux/mmdebug.h
@@ -37,6 +37,13 @@ void dump_mm(const struct mm_struct *mm);
BUG(); \
} \
} while (0)
+#define VM_WARN_ON_PAGE(cond, page) \
+ do { \
+ if (unlikely(cond)) { \
+ dump_page(page, "VM_WARN_ON_PAGE(" __stringify(cond)")");\
+ WARN_ON(1); \
+ } \
+ } while (0)
#define VM_WARN_ON_ONCE_PAGE(cond, page) ({ \
static bool __section(".data.once") __warned; \
int __ret_warn_once = !!(cond); \
@@ -60,6 +67,7 @@ void dump_mm(const struct mm_struct *mm);
#define VM_BUG_ON_MM(cond, mm) VM_BUG_ON(cond)
#define VM_WARN_ON(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN_ON_ONCE(cond) BUILD_BUG_ON_INVALID(cond)
+#define VM_WARN_ON_PAGE(cond, page) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN_ON_ONCE_PAGE(cond, page) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN_ONCE(cond, format...) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN(cond, format...) BUILD_BUG_ON_INVALID(cond)
--
2.11.0
next prev parent reply other threads:[~2021-01-06 14:20 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-06 14:19 [PATCH v12 00/13] Free some vmemmap pages of HugeTLB page Muchun Song
2021-01-06 14:19 ` [PATCH v12 01/13] mm/memory_hotplug: Factor out bootmem core functions to bootmem_info.c Muchun Song
2021-01-06 14:19 ` [PATCH v12 02/13] mm/hugetlb: Introduce a new config HUGETLB_PAGE_FREE_VMEMMAP Muchun Song
2021-01-06 14:19 ` Muchun Song [this message]
2021-01-13 22:30 ` [PATCH v12 03/13] mm: Introduce VM_WARN_ON_PAGE macro Mike Kravetz
2021-01-14 2:50 ` [External] " Muchun Song
2021-01-06 14:19 ` [PATCH v12 04/13] mm/hugetlb: Free the vmemmap pages associated with each HugeTLB page Muchun Song
2021-01-12 8:04 ` Oscar Salvador
2021-01-12 11:33 ` [External] " Muchun Song
2021-01-13 9:20 ` Oscar Salvador
2021-01-13 23:27 ` Mike Kravetz
2021-01-14 10:54 ` Muchun Song
2021-01-14 11:52 ` Oscar Salvador
2021-01-14 13:05 ` Muchun Song
2021-01-14 10:57 ` Muchun Song
2021-01-06 14:19 ` [PATCH v12 05/13] mm/hugetlb: Defer freeing of HugeTLB pages Muchun Song
2021-01-06 14:19 ` [PATCH v12 06/13] mm/hugetlb: Allocate the vmemmap pages associated with each HugeTLB page Muchun Song
2021-01-06 14:19 ` [PATCH v12 07/13] mm/hugetlb: Set the PageHWPoison to the raw error page Muchun Song
2021-01-06 14:19 ` [PATCH v12 08/13] mm/hugetlb: Flush work when dissolving a HugeTLB page Muchun Song
2021-01-06 14:19 ` [PATCH v12 09/13] mm/hugetlb: Introduce PageHugeInflight Muchun Song
2021-01-06 14:19 ` [PATCH v12 10/13] mm/hugetlb: Add a kernel parameter hugetlb_free_vmemmap Muchun Song
2021-01-06 14:19 ` [PATCH v12 11/13] mm/hugetlb: Introduce nr_free_vmemmap_pages in the struct hstate Muchun Song
2021-01-06 14:19 ` [PATCH v12 12/13] mm/hugetlb: Gather discrete indexes of tail page Muchun Song
2021-01-14 0:18 ` Mike Kravetz
2021-01-14 2:47 ` [External] " Muchun Song
2021-01-06 14:19 ` [PATCH v12 13/13] mm/hugetlb: Optimize the code with the help of the compiler Muchun Song
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