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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 <bhe@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20241204125444.1734652-8-david@redhat.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
David Hildenbrand 2024-12-04 13:54:38 +01:00 committed by Michael S. Tsirkin
parent e017b1f4aa
commit e29e9acae0
2 changed files with 12 additions and 8 deletions
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9
fs/proc/vmcore.c
View File

@ -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 */

11
include/linux/crash_dump.h
View File

@ -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 */