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| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-05-19 23:08:51 +0200 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-05-19 23:08:51 +0200 |
| commit | 23b230ba8ac30d334afd249c9763e0d0ca583e43 (patch) | |
| tree | 283854f4547ccd47707b531221215a089066f92a /mm/swapfile.c | |
| parent | mm/swap: remove unneeded return value of free_swap_slot (diff) | |
| download | linux-23b230ba8ac30d334afd249c9763e0d0ca583e43.tar.xz linux-23b230ba8ac30d334afd249c9763e0d0ca583e43.zip | |
mm/swap: print bad swap offset entry in get_swap_device
If offset exceeds the si->max, print bad swap offset entry to help debug
the unexpected case.
Link: https://lkml.kernel.org/r/20220509131416.17553-6-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: NeilBrown <neilb@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index 570287b786cc..f59abca5cea9 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1271,6 +1271,7 @@ bad_nofile: out: return NULL; put_out: + pr_err("%s: %s%08lx\n", __func__, Bad_offset, entry.val); percpu_ref_put(&si->users); return NULL; } |