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| author |   Miaohe Lin <linmiaohe@huawei.com> | 2021-02-24 12:04:39 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-24 13:38:30 -0800 |
| commit | 374437a274e24e8e3ccd19f704e80d325f75f254 (patch) | |
| tree | 34b0338bbb860de6c1aa4434f567722debd41cb0 /mm/memory.c | |
| parent | mm/pgtable-generic.c: simplify the VM_BUG_ON condition in pmdp_huge_clear_flush() (diff) | |
| download | linux-rng-374437a274e24e8e3ccd19f704e80d325f75f254.tar.xz linux-rng-374437a274e24e8e3ccd19f704e80d325f75f254.zip | |
mm/pgtable-generic.c: optimize the VM_BUG_ON condition in pmdp_huge_clear_flush()
The developer will have trouble figuring out why the BUG actually
triggered when there is a complex expression in the VM_BUG_ON. Because we
can only identify the condition triggered BUG via line number provided by
VM_BUG_ON. Optimize this by spliting such a complex expression into two
simple conditions.
Link: https://lkml.kernel.org/r/20210203084137.25522-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
0 files changed, 0 insertions, 0 deletions