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trans.h

trans.h 1.5 KB
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  1. /*
    2. 

  2.  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
    3. 

  3.  * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
    4. 

  4.  *
    5. 

  5.  * This copyrighted material is made available to anyone wishing to use,
    6. 

  6.  * modify, copy, or redistribute it subject to the terms and conditions
    7. 

  7.  * of the GNU General Public License version 2.
    8. 

  8.  */
    9. 

  9. 

  10. #ifndef __TRANS_DOT_H__
    11. 

  11. #define __TRANS_DOT_H__
    12. 

  12. 

  13. #include <linux/buffer_head.h>
    14. 

  14. struct gfs2_sbd;
    15. 

  15. struct gfs2_rgrpd;
    16. 

  16. struct gfs2_glock;
    17. 

  17. 

  18. #define RES_DINODE	1
    19. 

  19. #define RES_INDIRECT	1
    20. 

  20. #define RES_JDATA	1
    21. 

  21. #define RES_DATA	1
    22. 

  22. #define RES_LEAF	1
    23. 

  23. #define RES_RG_HDR	1
    24. 

  24. #define RES_RG_BIT	2
    25. 

  25. #define RES_EATTR	1
    26. 

  26. #define RES_STATFS	1
    27. 

  27. #define RES_QUOTA	2
    28. 

  28. 

  29. /* reserve either the number of blocks to be allocated plus the rg header
    30. 

  30.  * block, or all of the blocks in the rg, whichever is smaller */
    31. 

  31. static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip, unsigned requested)
    32. 

  32. {
    33. 

  33. 	if (requested < ip->i_rgd->rd_length)
    34. 

  34. 		return requested + 1;
    35. 

  35. 	return ip->i_rgd->rd_length;
    36. 

  36. }
    37. 

  37. 

  38. extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
    39. 

  39. 			    unsigned int revokes);
    40. 

  40. 

  41. extern void gfs2_trans_end(struct gfs2_sbd *sdp);
    42. 

  42. extern void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh);
    43. 

  43. extern void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh);
    44. 

  44. extern void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
    45. 

  45. extern void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
    46. 

  46. 

  47. #endif /* __TRANS_DOT_H__ */
    48.