#include "comm.h" #include "util.h" #include #include #include struct comm_str { char *str; struct rb_node rb_node; atomic_t refcnt; }; /* Should perhaps be moved to struct machine */ static struct rb_root comm_str_root; static struct comm_str *comm_str__get(struct comm_str *cs) { if (cs) atomic_inc(&cs->refcnt); return cs; } static void comm_str__put(struct comm_str *cs) { if (cs && atomic_dec_and_test(&cs->refcnt)) { rb_erase(&cs->rb_node, &comm_str_root); zfree(&cs->str); free(cs); } } static struct comm_str *comm_str__alloc(const char *str) { struct comm_str *cs; cs = zalloc(sizeof(*cs)); if (!cs) return NULL; cs->str = strdup(str); if (!cs->str) { free(cs); return NULL; } atomic_set(&cs->refcnt, 0); return cs; } static struct comm_str *comm_str__findnew(const char *str, struct rb_root *root) { struct rb_node **p = &root->rb_node; struct rb_node *parent = NULL; struct comm_str *iter, *new; int cmp; while (*p != NULL) { parent = *p; iter = rb_entry(parent, struct comm_str, rb_node); cmp = strcmp(str, iter->str); if (!cmp) return iter; if (cmp < 0) p = &(*p)->rb_left; else p = &(*p)->rb_right; } new = comm_str__alloc(str); if (!new) return NULL; rb_link_node(&new->rb_node, parent, p); rb_insert_color(&new->rb_node, root); return new; } struct comm *comm__new(const char *str, u64 timestamp, bool exec) { struct comm *comm = zalloc(sizeof(*comm)); if (!comm) return NULL; comm->start = timestamp; comm->exec = exec; comm->comm_str = comm_str__findnew(str, &comm_str_root); if (!comm->comm_str) { free(comm); return NULL; } comm_str__get(comm->comm_str); return comm; } int comm__override(struct comm *comm, const char *str, u64 timestamp, bool exec) { struct comm_str *new, *old = comm->comm_str; new = comm_str__findnew(str, &comm_str_root); if (!new) return -ENOMEM; comm_str__get(new); comm_str__put(old); comm->comm_str = new; comm->start = timestamp; if (exec) comm->exec = true; return 0; } void comm__free(struct comm *comm) { comm_str__put(comm->comm_str); free(comm); } const char *comm__str(const struct comm *comm) { return comm->comm_str->str; } net-next.git/log/net/ipv6'>

path: root/net/ipv6

Age	Commit message (Expand)	Author	Files	Lines
2017-02-04	net: ipv6: Use compressed IPv6 addresses showing route replace error	David Ahern	1	-1/+1
2017-02-04	net: ipv6: Change notifications for multipath delete to RTA_MULTIPATH	David Ahern	2	-1/+28
2017-02-04	net: ipv6: Change notifications for multipath add to RTA_MULTIPATH	David Ahern	2	-3/+53
2017-02-04	net: ipv6: Add support to dump multipath routes via RTA_MULTIPATH attribute	David Ahern	2	-17/+105
2017-02-04	net: ipv6: Allow shorthand delete of all nexthops in multipath route	David Ahern	1	-2/+36
2017-02-03	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	David S. Miller	7	-39/+28
2017-02-03	net: ipv6: Set protocol to kernel for local routes	David Ahern	1	-0/+1
2017-02-03	tcp: add tcp_mss_clamp() helper	Eric Dumazet	1	-4/+1
2017-02-02	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	David S. Miller	2	-2/+2
2017-02-02	netfilter: allow logging from non-init namespaces	Michal Kubeček	1	-1/+1
2017-02-02	netfilter: merge ctinfo into nfct pointer storage area	Florian Westphal	1	-1/+1
2017-02-02	netfilter: add and use nf_ct_set helper	Florian Westphal	3	-8/+4
2017-02-02	skbuff: add and use skb_nfct helper	Florian Westphal	3	-8/+8
2017-02-02	netfilter: reset netfilter state when duplicating packet	Florian Westphal	1	-1/+1
2017-02-02	netfilter: conntrack: no need to pass ctinfo to error handler	Florian Westphal	1	-6/+6