perf-eh_elf/trace/beauty/msg_flags.c
Linus Torvalds 16c00db4bb 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 10:48:36 -07:00

62 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include <sys/types.h>
#include <sys/socket.h>
#ifndef MSG_PROBE
#define MSG_PROBE 0x10
#endif
#ifndef MSG_WAITFORONE
#define MSG_WAITFORONE 0x10000
#endif
#ifndef MSG_SENDPAGE_NOTLAST
#define MSG_SENDPAGE_NOTLAST 0x20000
#endif
#ifndef MSG_FASTOPEN
#define MSG_FASTOPEN 0x20000000
#endif
#ifndef MSG_CMSG_CLOEXEC
# define MSG_CMSG_CLOEXEC 0x40000000
#endif
static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
struct syscall_arg *arg)
{
int printed = 0, flags = arg->val;
if (flags == 0)
return scnprintf(bf, size, "NONE");
#define P_MSG_FLAG(n) \
if (flags & MSG_##n) { \
printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
flags &= ~MSG_##n; \
}
P_MSG_FLAG(OOB);
P_MSG_FLAG(PEEK);
P_MSG_FLAG(DONTROUTE);
P_MSG_FLAG(CTRUNC);
P_MSG_FLAG(PROBE);
P_MSG_FLAG(TRUNC);
P_MSG_FLAG(DONTWAIT);
P_MSG_FLAG(EOR);
P_MSG_FLAG(WAITALL);
P_MSG_FLAG(FIN);
P_MSG_FLAG(SYN);
P_MSG_FLAG(CONFIRM);
P_MSG_FLAG(RST);
P_MSG_FLAG(ERRQUEUE);
P_MSG_FLAG(NOSIGNAL);
P_MSG_FLAG(MORE);
P_MSG_FLAG(WAITFORONE);
P_MSG_FLAG(SENDPAGE_NOTLAST);
P_MSG_FLAG(FASTOPEN);
P_MSG_FLAG(CMSG_CLOEXEC);
#undef P_MSG_FLAG
if (flags)
printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
return printed;
}
#define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags