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localalloc.h

localalloc.h 2.1 KB
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  1. /* -*- mode: c; c-basic-offset: 8; -*-
    2. 

  2.  * vim: noexpandtab sw=8 ts=8 sts=0:
    3. 

  3.  *
    4. 

  4.  * localalloc.h
    5. 

  5.  *
    6. 

  6.  * Function prototypes
    7. 

  7.  *
    8. 

  8.  * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
    9. 

  9.  *
    10. 

  10.  * This program is free software; you can redistribute it and/or
    11. 

  11.  * modify it under the terms of the GNU General Public
    12. 

  12.  * License as published by the Free Software Foundation; either
    13. 

  13.  * version 2 of the License, or (at your option) any later version.
    14. 

  14.  *
    15. 

  15.  * This program is distributed in the hope that it will be useful,
    16. 

  16.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    17. 

  17.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    18. 

  18.  * General Public License for more details.
    19. 

  19.  *
    20. 

  20.  * You should have received a copy of the GNU General Public
    21. 

  21.  * License along with this program; if not, write to the
    22. 

  22.  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    23. 

  23.  * Boston, MA 021110-1307, USA.
    24. 

  24.  */
    25. 

  25. 

  26. #ifndef OCFS2_LOCALALLOC_H
    27. 

  27. #define OCFS2_LOCALALLOC_H
    28. 

  28. 

  29. int ocfs2_load_local_alloc(struct ocfs2_super *osb);
    30. 

  30. 

  31. void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb);
    32. 

  32. 

  33. void ocfs2_la_set_sizes(struct ocfs2_super *osb, int requested_mb);
    34. 

  34. unsigned int ocfs2_la_default_mb(struct ocfs2_super *osb);
    35. 

  35. 

  36. int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
    37. 

  37. 				     int node_num,
    38. 

  38. 				     struct ocfs2_dinode **alloc_copy);
    39. 

  39. 

  40. int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb,
    41. 

  41. 					struct ocfs2_dinode *alloc);
    42. 

  42. 

  43. int ocfs2_alloc_should_use_local(struct ocfs2_super *osb,
    44. 

  44. 				 u64 bits);
    45. 

  45. 

  46. struct ocfs2_alloc_context;
    47. 

  47. int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
    48. 

  48. 				   u32 bits_wanted,
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  49. 				   struct ocfs2_alloc_context *ac);
    50. 

  50. 

  51. int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
    52. 

  52. 				 handle_t *handle,
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  53. 				 struct ocfs2_alloc_context *ac,
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  54. 				 u32 bits_wanted,
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  55. 				 u32 *bit_off,
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  56. 				 u32 *num_bits);
    57. 

  57. 

  58. int ocfs2_free_local_alloc_bits(struct ocfs2_super *osb,
    59. 

  59. 				handle_t *handle,
    60. 

  60. 				struct ocfs2_alloc_context *ac,
    61. 

  61. 				u32 bit_off,
    62. 

  62. 				u32 num_bits);
    63. 

  63. 

  64. void ocfs2_local_alloc_seen_free_bits(struct ocfs2_super *osb,
    65. 

  65. 				      unsigned int num_clusters);
    66. 

  66. void ocfs2_la_enable_worker(struct work_struct *work);
    67. 

  67. 

  68. #endif /* OCFS2_LOCALALLOC_H */
    69. 

  69.