| Message ID | 20240524074109.13433-1-jiapeng.chong@linux.alibaba.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | dm vdo indexer: Use swap() instead of open coding it | expand |
> Swap is a function interface that provides exchange function. To avoid > code duplication, we can use swap function. Would a wording approach (like the following) be a bit nicer for the second sentence? Use existing swap() function rather than duplicating its implementation. How do you think about to apply the summary phrase “Use swap() in swap_open_chapter()”? > ./drivers/md/dm-vdo/indexer/index.c:207:43-44: WARNING opportunity for swap(). > > Reported-by: Abaci Robot <abaci@linux.alibaba.com> > Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9173 Would another indication be helpful for the involved analysis tool? https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/scripts/coccinelle/misc/swap.cocci?h=v6.9 Regards, Markus
On 5/24/24 03:41, Jiapeng Chong wrote: > Swap is a function interface that provides exchange function. To avoid > code duplication, we can use swap function. > > ./drivers/md/dm-vdo/indexer/index.c:207:43-44: WARNING opportunity for swap(). > > Reported-by: Abaci Robot <abaci@linux.alibaba.com> > Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9173 > Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Reviewed-by: Matthew Sakai <msakai@redhat.com> Mike, can you make sure this gets applied with the rest of the pending dm patches? > --- > drivers/md/dm-vdo/indexer/index.c | 5 +---- > 1 file changed, 1 insertion(+), 4 deletions(-) > > diff --git a/drivers/md/dm-vdo/indexer/index.c b/drivers/md/dm-vdo/indexer/index.c > index 1ba767144426..df4934846244 100644 > --- a/drivers/md/dm-vdo/indexer/index.c > +++ b/drivers/md/dm-vdo/indexer/index.c > @@ -197,15 +197,12 @@ static int finish_previous_chapter(struct uds_index *index, u64 current_chapter_ > static int swap_open_chapter(struct index_zone *zone) > { > int result; > - struct open_chapter_zone *temporary_chapter; > > result = finish_previous_chapter(zone->index, zone->newest_virtual_chapter); > if (result != UDS_SUCCESS) > return result; > > - temporary_chapter = zone->open_chapter; > - zone->open_chapter = zone->writing_chapter; > - zone->writing_chapter = temporary_chapter; > + swap(zone->open_chapter, zone->writing_chapter); > return UDS_SUCCESS; > } >
diff --git a/drivers/md/dm-vdo/indexer/index.c b/drivers/md/dm-vdo/indexer/index.c index 1ba767144426..df4934846244 100644 --- a/drivers/md/dm-vdo/indexer/index.c +++ b/drivers/md/dm-vdo/indexer/index.c @@ -197,15 +197,12 @@ static int finish_previous_chapter(struct uds_index *index, u64 current_chapter_ static int swap_open_chapter(struct index_zone *zone) { int result; - struct open_chapter_zone *temporary_chapter; result = finish_previous_chapter(zone->index, zone->newest_virtual_chapter); if (result != UDS_SUCCESS) return result; - temporary_chapter = zone->open_chapter; - zone->open_chapter = zone->writing_chapter; - zone->writing_chapter = temporary_chapter; + swap(zone->open_chapter, zone->writing_chapter); return UDS_SUCCESS; }
Swap is a function interface that provides exchange function. To avoid code duplication, we can use swap function. ./drivers/md/dm-vdo/indexer/index.c:207:43-44: WARNING opportunity for swap(). Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9173 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> --- drivers/md/dm-vdo/indexer/index.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)