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/*
Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#ifndef __UPCALL_CACHE_INVALIDATION_H__
#define __UPCALL_CACHE_INVALIDATION_H__
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
/* The time period for which a client will be notified of cache_invalidation
* events post its last access */
#define CACHE_INVALIDATION_TIMEOUT "60"
/* Flags sent for cache_invalidation */
#define UP_NLINK 0x00000001 /* update nlink */
#define UP_MODE 0x00000002 /* update mode and ctime */
#define UP_OWN 0x00000004 /* update mode,uid,gid and ctime */
#define UP_SIZE 0x00000008 /* update fsize */
#define UP_TIMES 0x00000010 /* update all times */
#define UP_ATIME 0x00000020 /* update atime only */
#define UP_PERM 0x00000040 /* update fields needed for
permission checking */
#define UP_RENAME 0x00000080 /* this is a rename op -
delete the cache entry */
#define UP_FORGET 0x00000100 /* inode_forget on server side -
invalidate the cache entry */
/* for fops - open, read, lk, */
#define UP_IDEMPOTENT_FLAGS (UP_ATIME)
/* for fop - write, truncate */
#define UP_WRITE_FLAGS (UP_SIZE | UP_TIMES)
/* for fop - setattr */
#define UP_ATTR_FLAGS (UP_SIZE | UP_TIMES | UP_OWN | \
UP_MODE | UP_PERM)
/* for fop - rename */
#define UP_RENAME_FLAGS (UP_RENAME)
/* to invalidate parent directory entries for fops -rename, unlink,
* rmdir, mkdir, create */
#define UP_PARENT_DENTRY_FLAGS (UP_TIMES)
/* for fop - unlink, link, rmdir, mkdir */
#define UP_NLINK_FLAGS (UP_NLINK | UP_TIMES)
#define CACHE_INVALIDATE(frame, this, client, inode, p_flags) do { \
\
if (!is_cache_invalidation_enabled(this)) \
break; \
\
(void)upcall_cache_invalidate (frame, this, client, \
inode, p_flags); \
} while (0)
#define CACHE_INVALIDATE_DIR(frame, this, client, inode_p, p_flags) do {\
\
if (!is_cache_invalidation_enabled(this)) \
break; \
\
dentry_t *dentry; \
dentry_t *dentry_tmp; \
list_for_each_entry_safe (dentry, dentry_tmp, \
&inode_p->dentry_list, \
inode_list) { \
(void)upcall_cache_invalidate (frame, this, client, \
dentry->inode, p_flags); \
} \
} while (0)
/* xlator options */
gf_boolean_t is_cache_invalidation_enabled(xlator_t *this);
int32_t get_cache_invalidation_timeout(xlator_t *this);
#endif /* __UPCALL_CACHE_INVALIDATION_H__ */
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