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authorDavid Hildenbrand <[email protected]>2024-12-04 12:54:38 +0000
committerMichael S. Tsirkin <[email protected]>2025-01-27 14:39:16 +0000
commite29e9acae06dc28ca8dbf3db976e09787e610dc8 (patch)
treec013a83e3550708307a4190969886818780ed1cb
parentfs/proc/vmcore: factor out allocating a vmcore range and adding it to a list (diff)
downloadkernel-e29e9acae06dc28ca8dbf3db976e09787e610dc8.tar.gz
kernel-e29e9acae06dc28ca8dbf3db976e09787e610dc8.zip
fs/proc/vmcore: factor out freeing a list of vmcore ranges
Let's factor it out into include/linux/crash_dump.h, from where we can use it also outside of vmcore.c later. Acked-by: Baoquan He <[email protected]> Signed-off-by: David Hildenbrand <[email protected]> Message-Id: <[email protected]> Acked-by: Andrew Morton <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
-rw-r--r--fs/proc/vmcore.c9
-rw-r--r--include/linux/crash_dump.h11
2 files changed, 12 insertions, 8 deletions
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 7ad94fa7a2af..6632d4bc4b05 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -1592,14 +1592,7 @@ void vmcore_cleanup(void)
proc_vmcore = NULL;
}
- /* clear the vmcore list. */
- while (!list_empty(&vmcore_list)) {
- struct vmcore_range *m;
-
- m = list_first_entry(&vmcore_list, struct vmcore_range, list);
- list_del(&m->list);
- kfree(m);
- }
+ vmcore_free_ranges(&vmcore_list);
free_elfcorebuf();
/* clear vmcore device dump list */
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
index 9717912ce4d1..5d61c7454fd6 100644
--- a/include/linux/crash_dump.h
+++ b/include/linux/crash_dump.h
@@ -135,6 +135,17 @@ static inline int vmcore_alloc_add_range(struct list_head *list,
return 0;
}
+/* Free a list of vmcore ranges. */
+static inline void vmcore_free_ranges(struct list_head *list)
+{
+ struct vmcore_range *m, *tmp;
+
+ list_for_each_entry_safe(m, tmp, list, list) {
+ list_del(&m->list);
+ kfree(m);
+ }
+}
+
#else /* !CONFIG_CRASH_DUMP */
static inline bool is_kdump_kernel(void) { return false; }
#endif /* CONFIG_CRASH_DUMP */