On 2020/8/11 17:46, Martin Wilck wrote: > On Tue, 2020-08-11 at 11:23 +0800, Zhiqiang Liu wrote: > >> diff --git a/libmultipath/vector.c b/libmultipath/vector.c >> index 501cf4c5..39e2c20f 100644 >> --- a/libmultipath/vector.c >> +++ b/libmultipath/vector.c >> @@ -35,26 +35,22 @@ vector_alloc(void) >> } >> >> /* allocated one slot */ >> -void * >> +bool >> vector_alloc_slot(vector v) >> { >> void *new_slot = NULL; >> >> if (!v) >> - return NULL; >> - >> - v->allocated += VECTOR_DEFAULT_SIZE; >> - if (v->slot) >> - new_slot = REALLOC(v->slot, sizeof (void *) * v- >>> allocated); >> - else >> - new_slot = (void *) MALLOC(sizeof (void *) * v- >>> allocated); >> + return false; >> >> + new_slot = REALLOC(v->slot, sizeof (void *) * (v->allocated + >> VECTOR_DEFAULT_SIZE)); > > Please wrap this line. We basically still use a 80-columns limit, with > the exception of string constants (mostly condlog() lines). We don't > strictly enforce it, but 92 columns is a bit too much for my taste. Thanks for your reply. I will introduce new var to shorten this line and init new slot with using loop in the v3 patch. Thanks again. Regards. Zhiqiang Liu > >> if (!new_slot) >> - v->allocated -= VECTOR_DEFAULT_SIZE; >> - else >> - v->slot = new_slot; >> + return false; >> >> - return v->slot; >> + v->slot = new_slot; >> + v->allocated += VECTOR_DEFAULT_SIZE; >> + v->slot[VECTOR_SIZE(v) - 1] = NULL; > > This assumes that VECTOR_DEFAULT_SIZE == 1. While that has been true > essentially forever, there's no guarantee for the future. Better use a > for loop, or memset(). > > Regards > Martin > > > > . > -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel