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| author | David S. Miller <davem@davemloft.net> | 2012-07-19 12:31:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-20 13:31:21 -0700 |
| commit | f5b0a8743601a4477419171f5046bd07d1c080a0 (patch) | |
| tree | 92e17ec293c3d0e35a0deda5d3bbf43710fb96ff /net/core/dst.c | |
| parent | f8126f1d5136be1ca1a3536d43ad7a710b5620f8 (diff) | |
| download | lwn-f5b0a8743601a4477419171f5046bd07d1c080a0.tar.gz lwn-f5b0a8743601a4477419171f5046bd07d1c080a0.zip | |
net: Document dst->obsolete better.
Add a big comment explaining how the field works, and use defines
instead of magic constants for the values assigned to it.
Suggested by Joe Perches.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dst.c')
| -rw-r--r-- | net/core/dst.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/dst.c b/net/core/dst.c index 07bacff84aa4..069d51d29414 100644 --- a/net/core/dst.c +++ b/net/core/dst.c @@ -94,7 +94,7 @@ loop: * But we do not have state "obsoleted, but * referenced by parent", so it is right. */ - if (dst->obsolete > 1) + if (dst->obsolete > 0) continue; ___dst_free(dst); @@ -202,7 +202,7 @@ static void ___dst_free(struct dst_entry *dst) */ if (dst->dev == NULL || !(dst->dev->flags&IFF_UP)) dst->input = dst->output = dst_discard; - dst->obsolete = 2; + dst->obsolete = DST_OBSOLETE_DEAD; } void __dst_free(struct dst_entry *dst) |