mirror of
https://github.com/torvalds/linux.git
synced 2026-05-12 16:18:45 +02:00
515788fa98
Replace the magic value ~(u32)0 with a named constant. This value is used as a synthetic svid when looking up lockowners for DOS share operations, which have no real process ID associated with them. Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
34 lines
959 B
C
34 lines
959 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* DOS share management for lockd.
|
|
*
|
|
* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
|
|
*/
|
|
|
|
#ifndef _LOCKD_SHARE_H
|
|
#define _LOCKD_SHARE_H
|
|
|
|
/* Synthetic svid for lockowner lookup during share operations */
|
|
#define LOCKD_SHARE_SVID (~(u32)0)
|
|
|
|
/*
|
|
* DOS share for a specific file
|
|
*/
|
|
struct nlm_share {
|
|
struct nlm_share * s_next; /* linked list */
|
|
struct nlm_host * s_host; /* client host */
|
|
struct nlm_file * s_file; /* shared file */
|
|
struct xdr_netobj s_owner; /* owner handle */
|
|
u32 s_access; /* access mode */
|
|
u32 s_mode; /* deny mode */
|
|
};
|
|
|
|
__be32 nlmsvc_share_file(struct nlm_host *host, struct nlm_file *file,
|
|
struct xdr_netobj *oh, u32 access, u32 mode);
|
|
__be32 nlmsvc_unshare_file(struct nlm_host *host, struct nlm_file *file,
|
|
struct xdr_netobj *oh);
|
|
void nlmsvc_traverse_shares(struct nlm_host *, struct nlm_file *,
|
|
nlm_host_match_fn_t);
|
|
|
|
#endif /* _LOCKD_SHARE_H */
|