From: David Hildenbrand <david@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, linux-s390@vger.kernel.org,
virtualization@lists.linux.dev, kvm@vger.kernel.org,
linux-fsdevel@vger.kernel.org, kexec@lists.infradead.org,
"David Hildenbrand" <david@redhat.com>,
"Heiko Carstens" <hca@linux.ibm.com>,
"Vasily Gorbik" <gor@linux.ibm.com>,
"Alexander Gordeev" <agordeev@linux.ibm.com>,
"Christian Borntraeger" <borntraeger@linux.ibm.com>,
"Sven Schnelle" <svens@linux.ibm.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Jason Wang" <jasowang@redhat.com>,
"Xuan Zhuo" <xuanzhuo@linux.alibaba.com>,
"Eugenio Pérez" <eperezma@redhat.com>,
"Baoquan He" <bhe@redhat.com>, "Vivek Goyal" <vgoyal@redhat.com>,
"Dave Young" <dyoung@redhat.com>,
"Thomas Huth" <thuth@redhat.com>,
"Cornelia Huck" <cohuck@redhat.com>,
"Janosch Frank" <frankja@linux.ibm.com>,
"Claudio Imbrenda" <imbrenda@linux.ibm.com>,
"Eric Farman" <farman@linux.ibm.com>,
"Andrew Morton" <akpm@linux-foundation.org>
Subject: [PATCH v1 02/11] fs/proc/vmcore: replace vmcoredd_mutex by vmcore_mutex
Date: Fri, 25 Oct 2024 17:11:24 +0200 [thread overview]
Message-ID: <20241025151134.1275575-3-david@redhat.com> (raw)
In-Reply-To: <20241025151134.1275575-1-david@redhat.com>
Let's use our new mutex instead.
Signed-off-by: David Hildenbrand <david@redhat.com>
---
fs/proc/vmcore.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 110ce193d20f..b91c304463c9 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -53,7 +53,6 @@ static struct proc_dir_entry *proc_vmcore;
#ifdef CONFIG_PROC_VMCORE_DEVICE_DUMP
/* Device Dump list and mutex to synchronize access to list */
static LIST_HEAD(vmcoredd_list);
-static DEFINE_MUTEX(vmcoredd_mutex);
static bool vmcoredd_disabled;
core_param(novmcoredd, vmcoredd_disabled, bool, 0);
@@ -248,7 +247,7 @@ static int vmcoredd_copy_dumps(struct iov_iter *iter, u64 start, size_t size)
size_t tsz;
char *buf;
- mutex_lock(&vmcoredd_mutex);
+ mutex_lock(&vmcore_mutex);
list_for_each_entry(dump, &vmcoredd_list, list) {
if (start < offset + dump->size) {
tsz = min(offset + (u64)dump->size - start, (u64)size);
@@ -269,7 +268,7 @@ static int vmcoredd_copy_dumps(struct iov_iter *iter, u64 start, size_t size)
}
out_unlock:
- mutex_unlock(&vmcoredd_mutex);
+ mutex_unlock(&vmcore_mutex);
return ret;
}
@@ -283,7 +282,7 @@ static int vmcoredd_mmap_dumps(struct vm_area_struct *vma, unsigned long dst,
size_t tsz;
char *buf;
- mutex_lock(&vmcoredd_mutex);
+ mutex_lock(&vmcore_mutex);
list_for_each_entry(dump, &vmcoredd_list, list) {
if (start < offset + dump->size) {
tsz = min(offset + (u64)dump->size - start, (u64)size);
@@ -306,7 +305,7 @@ static int vmcoredd_mmap_dumps(struct vm_area_struct *vma, unsigned long dst,
}
out_unlock:
- mutex_unlock(&vmcoredd_mutex);
+ mutex_unlock(&vmcore_mutex);
return ret;
}
#endif /* CONFIG_MMU */
@@ -1517,9 +1516,9 @@ int vmcore_add_device_dump(struct vmcoredd_data *data)
dump->size = data_size;
/* Add the dump to driver sysfs list */
- mutex_lock(&vmcoredd_mutex);
+ mutex_lock(&vmcore_mutex);
list_add_tail(&dump->list, &vmcoredd_list);
- mutex_unlock(&vmcoredd_mutex);
+ mutex_unlock(&vmcore_mutex);
vmcoredd_update_size(data_size);
return 0;
@@ -1537,7 +1536,7 @@ EXPORT_SYMBOL(vmcore_add_device_dump);
static void vmcore_free_device_dumps(void)
{
#ifdef CONFIG_PROC_VMCORE_DEVICE_DUMP
- mutex_lock(&vmcoredd_mutex);
+ mutex_lock(&vmcore_mutex);
while (!list_empty(&vmcoredd_list)) {
struct vmcoredd_node *dump;
@@ -1547,7 +1546,7 @@ static void vmcore_free_device_dumps(void)
vfree(dump->buf);
vfree(dump);
}
- mutex_unlock(&vmcoredd_mutex);
+ mutex_unlock(&vmcore_mutex);
#endif /* CONFIG_PROC_VMCORE_DEVICE_DUMP */
}
--
2.46.1
next prev parent reply other threads:[~2024-10-25 15:12 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-25 15:11 [PATCH v1 00/11] fs/proc/vmcore: kdump support for virtio-mem on s390 David Hildenbrand
2024-10-25 15:11 ` [PATCH v1 01/11] fs/proc/vmcore: convert vmcore_cb_lock into vmcore_mutex David Hildenbrand
2024-11-15 9:30 ` Baoquan He
2024-11-15 10:03 ` David Hildenbrand
2024-11-20 8:16 ` Baoquan He
2024-11-20 8:56 ` David Hildenbrand
2024-10-25 15:11 ` David Hildenbrand [this message]
2024-11-15 9:32 ` [PATCH v1 02/11] fs/proc/vmcore: replace vmcoredd_mutex by vmcore_mutex Baoquan He
2024-11-15 10:04 ` David Hildenbrand
2024-11-20 8:14 ` Baoquan He
2024-10-25 15:11 ` [PATCH v1 03/11] fs/proc/vmcore: disallow vmcore modifications after the vmcore was opened David Hildenbrand
2024-11-22 9:16 ` Baoquan He
2024-11-22 9:30 ` David Hildenbrand
2024-11-25 14:41 ` Baoquan He
2024-11-29 10:38 ` David Hildenbrand
2024-12-03 10:42 ` Baoquan He
2024-12-03 10:51 ` David Hildenbrand
2024-10-25 15:11 ` [PATCH v1 04/11] fs/proc/vmcore: move vmcore definitions from kcore.h to crash_dump.h David Hildenbrand
2024-11-15 9:44 ` Baoquan He
2024-11-15 9:59 ` David Hildenbrand
2024-11-20 9:42 ` Baoquan He
2024-11-20 10:28 ` David Hildenbrand
2024-11-21 4:35 ` Baoquan He
2024-11-21 15:37 ` David Hildenbrand
2024-10-25 15:11 ` [PATCH v1 05/11] fs/proc/vmcore: factor out allocating a vmcore memory node David Hildenbrand
2024-11-20 9:45 ` Baoquan He
2024-10-25 15:11 ` [PATCH v1 06/11] fs/proc/vmcore: factor out freeing a list of vmcore ranges David Hildenbrand
2024-11-20 9:46 ` Baoquan He
2024-10-25 15:11 ` [PATCH v1 07/11] fs/proc/vmcore: introduce PROC_VMCORE_DEVICE_RAM to detect device RAM ranges in 2nd kernel David Hildenbrand
2024-11-20 10:13 ` Baoquan He
2024-11-20 10:48 ` David Hildenbrand
2024-11-20 14:05 ` Baoquan He
2024-11-20 14:39 ` David Hildenbrand
2024-11-21 4:30 ` Baoquan He
2024-11-21 19:47 ` David Hildenbrand
2024-11-22 7:51 ` Baoquan He
2024-11-22 7:31 ` Baoquan He
2024-11-22 9:47 ` David Hildenbrand
2024-10-25 15:11 ` [PATCH v1 08/11] virtio-mem: mark device ready before registering callbacks in kdump mode David Hildenbrand
2024-10-25 15:11 ` [PATCH v1 09/11] virtio-mem: remember usable region size David Hildenbrand
2024-10-25 15:11 ` [PATCH v1 10/11] virtio-mem: support CONFIG_PROC_VMCORE_DEVICE_RAM David Hildenbrand
2024-10-25 15:11 ` [PATCH v1 11/11] s390/kdump: virtio-mem kdump support (CONFIG_PROC_VMCORE_DEVICE_RAM) David Hildenbrand
2024-11-04 6:21 ` [PATCH v1 00/11] fs/proc/vmcore: kdump support for virtio-mem on s390 Baoquan He
2024-11-15 8:46 ` Baoquan He
2024-11-15 8:55 ` David Hildenbrand
2024-11-15 9:48 ` Baoquan He
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