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mm/percpu.c: print error message too if atomic alloc failed 

The variable 'err' is assgigned to an error message if atomic alloc
failed, while it has no chance to be printed if is_atomic is true.

Here change to print error message too if atomic alloc failed, while
avoid to call dump_stack() if that case.

Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
This commit is contained in:
Baoquan He 2023-07-28 11:02:55 +08:00 committed by Dennis Zhou
parent 7ee1e758be
commit f7d77dfc91
1 changed files with 4 additions and 2 deletions
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6
mm/percpu.c
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@ -1890,13 +1890,15 @@ fail_unlock:
fail:
trace_percpu_alloc_percpu_fail(reserved, is_atomic, size, align);
if (!is_atomic && do_warn && warn_limit) {
if (do_warn && warn_limit) {
pr_warn("allocation failed, size=%zu align=%zu atomic=%d, %s\n",
size, align, is_atomic, err);
dump_stack();
if (!is_atomic)
dump_stack();
if (!--warn_limit)
pr_info("limit reached, disable warning\n");
}
if (is_atomic) {
/* see the flag handling in pcpu_balance_workfn() */
pcpu_atomic_alloc_failed = true;