[GFS2] The core of GFS2
This patch contains all the core files for GFS2. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
David Teigland
committed by
Steven Whitehouse
Steven Whitehouse
parent
f7825dcf8c
commit
b3b94faa5f
180
fs/gfs2/util.h
Normal file
180
fs/gfs2/util.h
Normal file
@@ -0,0 +1,180 @@
|
||||
/*
|
||||
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
||||
* Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
|
||||
*
|
||||
* This copyrighted material is made available to anyone wishing to use,
|
||||
* modify, copy, or redistribute it subject to the terms and conditions
|
||||
* of the GNU General Public License v.2.
|
||||
*/
|
||||
|
||||
#ifndef __UTIL_DOT_H__
|
||||
#define __UTIL_DOT_H__
|
||||
|
||||
uint32_t gfs2_disk_hash(const char *data, int len);
|
||||
|
||||
|
||||
#define fs_printk(level, fs, fmt, arg...) \
|
||||
printk(level "GFS2: fsid=%s: " fmt , (fs)->sd_fsname , ## arg)
|
||||
|
||||
#define fs_info(fs, fmt, arg...) \
|
||||
fs_printk(KERN_INFO , fs , fmt , ## arg)
|
||||
|
||||
#define fs_warn(fs, fmt, arg...) \
|
||||
fs_printk(KERN_WARNING , fs , fmt , ## arg)
|
||||
|
||||
#define fs_err(fs, fmt, arg...) \
|
||||
fs_printk(KERN_ERR, fs , fmt , ## arg)
|
||||
|
||||
|
||||
void gfs2_assert_i(struct gfs2_sbd *sdp);
|
||||
|
||||
#define gfs2_assert(sdp, assertion) \
|
||||
do { \
|
||||
if (unlikely(!(assertion))) { \
|
||||
gfs2_assert_i(sdp); \
|
||||
BUG(); \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
|
||||
int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
|
||||
const char *function, char *file, unsigned int line);
|
||||
|
||||
#define gfs2_assert_withdraw(sdp, assertion) \
|
||||
((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \
|
||||
__FUNCTION__, __FILE__, __LINE__))
|
||||
|
||||
|
||||
int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
|
||||
const char *function, char *file, unsigned int line);
|
||||
|
||||
#define gfs2_assert_warn(sdp, assertion) \
|
||||
((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \
|
||||
__FUNCTION__, __FILE__, __LINE__))
|
||||
|
||||
|
||||
int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide,
|
||||
const char *function, char *file, unsigned int line);
|
||||
|
||||
#define gfs2_consist(sdp) \
|
||||
gfs2_consist_i((sdp), 0, __FUNCTION__, __FILE__, __LINE__)
|
||||
|
||||
|
||||
int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
|
||||
const char *function, char *file, unsigned int line);
|
||||
|
||||
#define gfs2_consist_inode(ip) \
|
||||
gfs2_consist_inode_i((ip), 0, __FUNCTION__, __FILE__, __LINE__)
|
||||
|
||||
|
||||
int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
|
||||
const char *function, char *file, unsigned int line);
|
||||
|
||||
#define gfs2_consist_rgrpd(rgd) \
|
||||
gfs2_consist_rgrpd_i((rgd), 0, __FUNCTION__, __FILE__, __LINE__)
|
||||
|
||||
|
||||
int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
|
||||
const char *type, const char *function,
|
||||
char *file, unsigned int line);
|
||||
|
||||
static inline int gfs2_meta_check_i(struct gfs2_sbd *sdp,
|
||||
struct buffer_head *bh,
|
||||
const char *function,
|
||||
char *file, unsigned int line)
|
||||
{
|
||||
struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
|
||||
uint32_t magic = mh->mh_magic;
|
||||
magic = be32_to_cpu(magic);
|
||||
if (unlikely(magic != GFS2_MAGIC))
|
||||
return gfs2_meta_check_ii(sdp, bh, "magic number", function,
|
||||
file, line);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define gfs2_meta_check(sdp, bh) \
|
||||
gfs2_meta_check_i((sdp), (bh), __FUNCTION__, __FILE__, __LINE__)
|
||||
|
||||
|
||||
int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
|
||||
uint16_t type, uint16_t t,
|
||||
const char *function,
|
||||
char *file, unsigned int line);
|
||||
|
||||
static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
|
||||
struct buffer_head *bh,
|
||||
uint16_t type,
|
||||
const char *function,
|
||||
char *file, unsigned int line)
|
||||
{
|
||||
struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
|
||||
uint32_t magic = mh->mh_magic;
|
||||
uint16_t t = mh->mh_type;
|
||||
magic = be32_to_cpu(magic);
|
||||
if (unlikely(magic != GFS2_MAGIC))
|
||||
return gfs2_meta_check_ii(sdp, bh, "magic number", function,
|
||||
file, line);
|
||||
t = be16_to_cpu(t);
|
||||
if (unlikely(t != type))
|
||||
return gfs2_metatype_check_ii(sdp, bh, type, t, function,
|
||||
file, line);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define gfs2_metatype_check(sdp, bh, type) \
|
||||
gfs2_metatype_check_i((sdp), (bh), (type), __FUNCTION__, __FILE__, __LINE__)
|
||||
|
||||
static inline void gfs2_metatype_set(struct buffer_head *bh, uint16_t type,
|
||||
uint16_t format)
|
||||
{
|
||||
struct gfs2_meta_header *mh;
|
||||
mh = (struct gfs2_meta_header *)bh->b_data;
|
||||
mh->mh_type = cpu_to_be16(type);
|
||||
mh->mh_format = cpu_to_be16(format);
|
||||
}
|
||||
|
||||
|
||||
int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
|
||||
char *file, unsigned int line);
|
||||
|
||||
#define gfs2_io_error(sdp) \
|
||||
gfs2_io_error_i((sdp), __FUNCTION__, __FILE__, __LINE__);
|
||||
|
||||
|
||||
int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
|
||||
const char *function, char *file, unsigned int line);
|
||||
|
||||
#define gfs2_io_error_bh(sdp, bh) \
|
||||
gfs2_io_error_bh_i((sdp), (bh), __FUNCTION__, __FILE__, __LINE__);
|
||||
|
||||
|
||||
extern kmem_cache_t *gfs2_glock_cachep;
|
||||
extern kmem_cache_t *gfs2_inode_cachep;
|
||||
extern kmem_cache_t *gfs2_bufdata_cachep;
|
||||
|
||||
struct gfs2_user_buffer {
|
||||
char __user *ub_data;
|
||||
unsigned int ub_size;
|
||||
unsigned int ub_count;
|
||||
};
|
||||
|
||||
int gfs2_add_bh_to_ub(struct gfs2_user_buffer *ub, struct buffer_head *bh);
|
||||
|
||||
static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
|
||||
unsigned int *p)
|
||||
{
|
||||
unsigned int x;
|
||||
spin_lock(>->gt_spin);
|
||||
x = *p;
|
||||
spin_unlock(>->gt_spin);
|
||||
return x;
|
||||
}
|
||||
|
||||
#define gfs2_tune_get(sdp, field) \
|
||||
gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
|
||||
|
||||
void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
|
||||
unsigned int bit, int new_value);
|
||||
|
||||
#endif /* __UTIL_DOT_H__ */
|
||||
|
||||
Reference in New Issue
Block a user