proxmox-mirrors/mirror_frr
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_frr synced 2025-08-13 22:57:45 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

lib: use 32-bit atomics, s/pow/mul

Browse Source 
Some platforms don't support 64-bit atomics, missed converting a
floating point pow() to an integral mul when changing SD algo.

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
This commit is contained in:
Quentin Young 2017-07-11 11:14:09 -04:00
parent 1c95bad18a
commit 62c3d0260c
No known key found for this signature in database
GPG Key ID: DAF48E0F57E0834F
2 changed files with 4 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
lib/hash.c
View File

@ -87,13 +87,8 @@ hash_alloc_intern (void *arg)
}
#define hash_update_ssq(hz, old, new) \
do { \
long double res; \
res = powl(old, 2.0); \
hz->stats.ssq -= (uint64_t) res;\
res = powl(new, 2.0); \
hz->stats.ssq += (uint64_t) res; \
} while (0); \
atomic_fetch_add_explicit(&hz->stats.ssq, (new + old)*(new - old),\
memory_order_relaxed);
/* Expand hash if the chain length exceeds the threshold. */
static void hash_expand (struct hash *hash)

4
lib/hash.h
View File

@ -53,9 +53,9 @@ struct hash_backet
struct hashstats
{
/* number of empty hash buckets */
_Atomic int empty;
_Atomic uint_fast32_t empty;
/* sum of squares of bucket length */
_Atomic uint64_t ssq;
_Atomic uint_fast32_t ssq;
};
struct hash