perf-eh_elf/util/intlist.h

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Merge tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull AFS fixes from David Howells: "Here's a set of patches that fix a number of bugs in the in-kernel AFS client, including: - Fix directory locking to not use individual page locks for directory reading/scanning but rather to use a semaphore on the afs_vnode struct as the directory contents must be read in a single blob and data from different reads must not be mixed as the entire contents may be shuffled about between reads. - Fix address list parsing to handle port specifiers correctly. - Only give up callback records on a server if we actually talked to that server (we might not be able to access a server). - Fix some callback handling bugs, including refcounting, whole-volume callbacks and when callbacks actually get broken in response to a CB.CallBack op. - Fix some server/address rotation bugs, including giving up if we can't probe a server; giving up if a server says it doesn't have a volume, but there are more servers to try. - Fix the decoding of fetched statuses to be OpenAFS compatible. - Fix the handling of server lookups in Cache Manager ops (such as CB.InitCallBackState3) to use a UUID if possible and to handle no server being found. - Fix a bug in server lookup where not all addresses are compared. - Fix the non-encryption of calls that prevents some servers from being accessed (this also requires an AF_RXRPC patch that has already gone in through the net tree). There's also a patch that adds tracepoints to log Cache Manager ops that don't find a matching server, either by UUID or by address" * tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: afs: Fix the non-encryption of calls afs: Fix CB.CallBack handling afs: Fix whole-volume callback handling afs: Fix afs_find_server search loop afs: Fix the handling of an unfound server in CM operations afs: Add a tracepoint to record callbacks from unlisted servers afs: Fix the handling of CB.InitCallBackState3 to find the server by UUID afs: Fix VNOVOL handling in address rotation afs: Fix AFSFetchStatus decoder to provide OpenAFS compatibility afs: Fix server rotation's handling of fileserver probe failure afs: Fix refcounting in callback registration afs: Fix giving up callbacks on server destruction afs: Fix address list parsing afs: Fix directory page locking
2018-05-15 19:48:36 +02:00
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_INTLIST_H
#define __PERF_INTLIST_H
#include <linux/rbtree.h>
#include <stdbool.h>
#include "rblist.h"
struct int_node {
struct rb_node rb_node;
int i;
void *priv;
};
struct intlist {
struct rblist rblist;
};
struct intlist *intlist__new(const char *slist);
void intlist__delete(struct intlist *ilist);
void intlist__remove(struct intlist *ilist, struct int_node *in);
int intlist__add(struct intlist *ilist, int i);
struct int_node *intlist__entry(const struct intlist *ilist, unsigned int idx);
struct int_node *intlist__find(struct intlist *ilist, int i);
struct int_node *intlist__findnew(struct intlist *ilist, int i);
static inline bool intlist__has_entry(struct intlist *ilist, int i)
{
return intlist__find(ilist, i) != NULL;
}
static inline bool intlist__empty(const struct intlist *ilist)
{
return rblist__empty(&ilist->rblist);
}
static inline unsigned int intlist__nr_entries(const struct intlist *ilist)
{
return rblist__nr_entries(&ilist->rblist);
}
/* For intlist iteration */
static inline struct int_node *intlist__first(struct intlist *ilist)
{
struct rb_node *rn = rb_first(&ilist->rblist.entries);
return rn ? rb_entry(rn, struct int_node, rb_node) : NULL;
}
static inline struct int_node *intlist__next(struct int_node *in)
{
struct rb_node *rn;
if (!in)
return NULL;
rn = rb_next(&in->rb_node);
return rn ? rb_entry(rn, struct int_node, rb_node) : NULL;
}
/**
* intlist__for_each_entry - iterate over a intlist
* @pos: the &struct int_node to use as a loop cursor.
* @ilist: the &struct intlist for loop.
*/
#define intlist__for_each_entry(pos, ilist) \
for (pos = intlist__first(ilist); pos; pos = intlist__next(pos))
/**
* intlist__for_each_entry_safe - iterate over a intlist safe against removal of
* int_node
* @pos: the &struct int_node to use as a loop cursor.
* @n: another &struct int_node to use as temporary storage.
* @ilist: the &struct intlist for loop.
*/
#define intlist__for_each_entry_safe(pos, n, ilist) \
for (pos = intlist__first(ilist), n = intlist__next(pos); pos;\
pos = n, n = intlist__next(n))
#endif /* __PERF_INTLIST_H */