71b86f562b
This reduces the size of the directory code by about 3k and gets readdir() to use the functions which were introduced in the previous directory code update. Two memory allocations are merged into one. Eliminates zeroing of some buffers which were never used before they were initialised by other data. There is still scope for further improvement in the directory code. On the logging side, a hand created mutex has been replaced by a standard Linux mutex in the log allocation code. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
171 lines
4.8 KiB
C
171 lines
4.8 KiB
C
/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU General Public License v.2.
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*/
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#ifndef __UTIL_DOT_H__
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#define __UTIL_DOT_H__
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#define fs_printk(level, fs, fmt, arg...) \
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printk(level "GFS2: fsid=%s: " fmt , (fs)->sd_fsname , ## arg)
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#define fs_info(fs, fmt, arg...) \
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fs_printk(KERN_INFO , fs , fmt , ## arg)
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#define fs_warn(fs, fmt, arg...) \
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fs_printk(KERN_WARNING , fs , fmt , ## arg)
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#define fs_err(fs, fmt, arg...) \
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fs_printk(KERN_ERR, fs , fmt , ## arg)
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void gfs2_assert_i(struct gfs2_sbd *sdp);
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#define gfs2_assert(sdp, assertion) \
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do { \
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if (unlikely(!(assertion))) { \
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gfs2_assert_i(sdp); \
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BUG(); \
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} \
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} while (0)
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int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
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const char *function, char *file, unsigned int line);
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#define gfs2_assert_withdraw(sdp, assertion) \
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((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \
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__FUNCTION__, __FILE__, __LINE__))
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int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
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const char *function, char *file, unsigned int line);
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#define gfs2_assert_warn(sdp, assertion) \
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((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \
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__FUNCTION__, __FILE__, __LINE__))
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int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide,
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const char *function, char *file, unsigned int line);
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#define gfs2_consist(sdp) \
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gfs2_consist_i((sdp), 0, __FUNCTION__, __FILE__, __LINE__)
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int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
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const char *function, char *file, unsigned int line);
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#define gfs2_consist_inode(ip) \
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gfs2_consist_inode_i((ip), 0, __FUNCTION__, __FILE__, __LINE__)
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int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
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const char *function, char *file, unsigned int line);
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#define gfs2_consist_rgrpd(rgd) \
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gfs2_consist_rgrpd_i((rgd), 0, __FUNCTION__, __FILE__, __LINE__)
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int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
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const char *type, const char *function,
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char *file, unsigned int line);
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static inline int gfs2_meta_check_i(struct gfs2_sbd *sdp,
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struct buffer_head *bh,
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const char *function,
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char *file, unsigned int line)
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{
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struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
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uint32_t magic = mh->mh_magic;
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magic = be32_to_cpu(magic);
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if (unlikely(magic != GFS2_MAGIC))
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return gfs2_meta_check_ii(sdp, bh, "magic number", function,
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file, line);
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return 0;
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}
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#define gfs2_meta_check(sdp, bh) \
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gfs2_meta_check_i((sdp), (bh), __FUNCTION__, __FILE__, __LINE__)
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int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
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uint16_t type, uint16_t t,
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const char *function,
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char *file, unsigned int line);
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static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
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struct buffer_head *bh,
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uint16_t type,
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const char *function,
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char *file, unsigned int line)
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{
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struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
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uint32_t magic = mh->mh_magic;
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uint16_t t = mh->mh_type;
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magic = be32_to_cpu(magic);
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if (unlikely(magic != GFS2_MAGIC))
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return gfs2_meta_check_ii(sdp, bh, "magic number", function,
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file, line);
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t = be16_to_cpu(t);
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if (unlikely(t != type))
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return gfs2_metatype_check_ii(sdp, bh, type, t, function,
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file, line);
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return 0;
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}
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#define gfs2_metatype_check(sdp, bh, type) \
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gfs2_metatype_check_i((sdp), (bh), (type), __FUNCTION__, __FILE__, __LINE__)
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static inline void gfs2_metatype_set(struct buffer_head *bh, uint16_t type,
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uint16_t format)
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{
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struct gfs2_meta_header *mh;
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mh = (struct gfs2_meta_header *)bh->b_data;
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mh->mh_type = cpu_to_be16(type);
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mh->mh_format = cpu_to_be16(format);
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}
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int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
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char *file, unsigned int line);
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#define gfs2_io_error(sdp) \
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gfs2_io_error_i((sdp), __FUNCTION__, __FILE__, __LINE__);
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int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
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const char *function, char *file, unsigned int line);
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#define gfs2_io_error_bh(sdp, bh) \
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gfs2_io_error_bh_i((sdp), (bh), __FUNCTION__, __FILE__, __LINE__);
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extern kmem_cache_t *gfs2_glock_cachep;
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extern kmem_cache_t *gfs2_inode_cachep;
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extern kmem_cache_t *gfs2_bufdata_cachep;
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static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
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unsigned int *p)
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{
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unsigned int x;
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spin_lock(>->gt_spin);
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x = *p;
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spin_unlock(>->gt_spin);
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return x;
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}
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#define gfs2_tune_get(sdp, field) \
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gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
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void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
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unsigned int bit, int new_value);
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#endif /* __UTIL_DOT_H__ */
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