Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 1 | /* |
| 2 | * alloc_stats.c --- Update allocation statistics for ext2fs |
| 3 | * |
| 4 | * Copyright (C) 2001 Theodore Ts'o. |
| 5 | * |
| 6 | * %Begin-Header% |
Theodore Ts'o | 543547a | 2010-05-17 21:31:56 -0400 | [diff] [blame] | 7 | * This file may be redistributed under the terms of the GNU Library |
| 8 | * General Public License, version 2. |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 9 | * %End-Header% |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 10 | */ |
| 11 | |
Theodore Ts'o | d1154eb | 2011-09-18 17:34:37 -0400 | [diff] [blame] | 12 | #include "config.h" |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 13 | #include <stdio.h> |
| 14 | |
| 15 | #include "ext2_fs.h" |
| 16 | #include "ext2fs.h" |
| 17 | |
Theodore Ts'o | 7f961d4 | 2002-02-03 01:28:52 -0500 | [diff] [blame] | 18 | void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino, |
| 19 | int inuse, int isdir) |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 20 | { |
| 21 | int group = ext2fs_group_of_ino(fs, ino); |
| 22 | |
Theodore Ts'o | cf4e06d | 2009-01-22 16:01:38 -0500 | [diff] [blame] | 23 | #ifndef OMIT_COM_ERR |
| 24 | if (ino > fs->super->s_inodes_count) { |
| 25 | com_err("ext2fs_inode_alloc_stats2", 0, |
Theodore Ts'o | 46d6f84 | 2009-04-22 15:07:00 -0400 | [diff] [blame] | 26 | "Illegal inode number: %lu", (unsigned long) ino); |
Theodore Ts'o | cf4e06d | 2009-01-22 16:01:38 -0500 | [diff] [blame] | 27 | return; |
| 28 | } |
| 29 | #endif |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 30 | if (inuse > 0) |
Valerie Aurora Henson | 8f82ef9 | 2009-08-05 00:27:10 -0400 | [diff] [blame] | 31 | ext2fs_mark_inode_bitmap2(fs->inode_map, ino); |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 32 | else |
Valerie Aurora Henson | 8f82ef9 | 2009-08-05 00:27:10 -0400 | [diff] [blame] | 33 | ext2fs_unmark_inode_bitmap2(fs->inode_map, ino); |
Valerie Aurora Henson | d7cca6b | 2009-10-25 21:43:47 -0400 | [diff] [blame] | 34 | ext2fs_bg_free_inodes_count_set(fs, group, ext2fs_bg_free_inodes_count(fs, group) - inuse); |
Theodore Ts'o | 7f961d4 | 2002-02-03 01:28:52 -0500 | [diff] [blame] | 35 | if (isdir) |
Valerie Aurora Henson | d7cca6b | 2009-10-25 21:43:47 -0400 | [diff] [blame] | 36 | ext2fs_bg_used_dirs_count_set(fs, group, ext2fs_bg_used_dirs_count(fs, group) + inuse); |
Jose R. Santos | d4f34d4 | 2007-10-21 21:03:25 -0500 | [diff] [blame] | 37 | |
Theodore Ts'o | 5711ed2 | 2008-04-21 01:29:01 -0400 | [diff] [blame] | 38 | /* We don't strictly need to be clearing the uninit flag if inuse < 0 |
Jose R. Santos | d4f34d4 | 2007-10-21 21:03:25 -0500 | [diff] [blame] | 39 | * (i.e. freeing inodes) but it also means something is bad. */ |
Eric Sandeen | e633b58 | 2009-10-25 21:41:32 -0400 | [diff] [blame] | 40 | ext2fs_bg_flags_clear(fs, group, EXT2_BG_INODE_UNINIT); |
Jose R. Santos | d4f34d4 | 2007-10-21 21:03:25 -0500 | [diff] [blame] | 41 | if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, |
| 42 | EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) { |
| 43 | ext2_ino_t first_unused_inode = fs->super->s_inodes_per_group - |
Valerie Aurora Henson | d7cca6b | 2009-10-25 21:43:47 -0400 | [diff] [blame] | 44 | ext2fs_bg_itable_unused(fs, group) + |
Jose R. Santos | d4f34d4 | 2007-10-21 21:03:25 -0500 | [diff] [blame] | 45 | group * fs->super->s_inodes_per_group + 1; |
| 46 | |
| 47 | if (ino >= first_unused_inode) |
Valerie Aurora Henson | d7cca6b | 2009-10-25 21:43:47 -0400 | [diff] [blame] | 48 | ext2fs_bg_itable_unused_set(fs, group, group * fs->super->s_inodes_per_group + fs->super->s_inodes_per_group - ino); |
Jose R. Santos | d4f34d4 | 2007-10-21 21:03:25 -0500 | [diff] [blame] | 49 | ext2fs_group_desc_csum_set(fs, group); |
| 50 | } |
| 51 | |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 52 | fs->super->s_free_inodes_count -= inuse; |
| 53 | ext2fs_mark_super_dirty(fs); |
| 54 | ext2fs_mark_ib_dirty(fs); |
| 55 | } |
| 56 | |
Theodore Ts'o | 7f961d4 | 2002-02-03 01:28:52 -0500 | [diff] [blame] | 57 | void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse) |
| 58 | { |
| 59 | ext2fs_inode_alloc_stats2(fs, ino, inuse, 0); |
| 60 | } |
| 61 | |
Jose R. Santos | e8328e3 | 2009-06-01 16:15:40 -0400 | [diff] [blame] | 62 | void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse) |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 63 | { |
Jose R. Santos | e8328e3 | 2009-06-01 16:15:40 -0400 | [diff] [blame] | 64 | int group = ext2fs_group_of_blk2(fs, blk); |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 65 | |
Theodore Ts'o | cf4e06d | 2009-01-22 16:01:38 -0500 | [diff] [blame] | 66 | #ifndef OMIT_COM_ERR |
Valerie Aurora Henson | 4efbac6 | 2009-09-07 20:46:34 -0400 | [diff] [blame] | 67 | if (blk >= ext2fs_blocks_count(fs->super)) { |
Theodore Ts'o | 46d6f84 | 2009-04-22 15:07:00 -0400 | [diff] [blame] | 68 | com_err("ext2fs_block_alloc_stats", 0, |
| 69 | "Illegal block number: %lu", (unsigned long) blk); |
Theodore Ts'o | cf4e06d | 2009-01-22 16:01:38 -0500 | [diff] [blame] | 70 | return; |
| 71 | } |
| 72 | #endif |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 73 | if (inuse > 0) |
Valerie Aurora Henson | 8f82ef9 | 2009-08-05 00:27:10 -0400 | [diff] [blame] | 74 | ext2fs_mark_block_bitmap2(fs->block_map, blk); |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 75 | else |
Valerie Aurora Henson | 8f82ef9 | 2009-08-05 00:27:10 -0400 | [diff] [blame] | 76 | ext2fs_unmark_block_bitmap2(fs->block_map, blk); |
Valerie Aurora Henson | d7cca6b | 2009-10-25 21:43:47 -0400 | [diff] [blame] | 77 | ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) - inuse); |
Eric Sandeen | e633b58 | 2009-10-25 21:41:32 -0400 | [diff] [blame] | 78 | ext2fs_bg_flags_clear(fs, group, EXT2_BG_BLOCK_UNINIT); |
Jose R. Santos | d4f34d4 | 2007-10-21 21:03:25 -0500 | [diff] [blame] | 79 | ext2fs_group_desc_csum_set(fs, group); |
| 80 | |
Theodore Ts'o | b98d3e8 | 2011-07-07 13:54:39 -0400 | [diff] [blame] | 81 | ext2fs_free_blocks_count_add(fs->super, |
| 82 | -inuse * EXT2FS_CLUSTER_RATIO(fs)); |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 83 | ext2fs_mark_super_dirty(fs); |
| 84 | ext2fs_mark_bb_dirty(fs); |
Theodore Ts'o | f5c562e | 2008-06-02 17:21:37 -0400 | [diff] [blame] | 85 | if (fs->block_alloc_stats) |
| 86 | (fs->block_alloc_stats)(fs, (blk64_t) blk, inuse); |
| 87 | } |
| 88 | |
Jose R. Santos | e8328e3 | 2009-06-01 16:15:40 -0400 | [diff] [blame] | 89 | void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse) |
| 90 | { |
| 91 | ext2fs_block_alloc_stats2(fs, blk, inuse); |
| 92 | } |
| 93 | |
Theodore Ts'o | efc6f62 | 2008-08-27 23:07:54 -0400 | [diff] [blame] | 94 | void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs, |
Theodore Ts'o | f5c562e | 2008-06-02 17:21:37 -0400 | [diff] [blame] | 95 | void (*func)(ext2_filsys fs, |
| 96 | blk64_t blk, |
| 97 | int inuse), |
| 98 | void (**old)(ext2_filsys fs, |
| 99 | blk64_t blk, |
| 100 | int inuse)) |
| 101 | { |
| 102 | if (!fs || fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS) |
| 103 | return; |
| 104 | if (old) |
| 105 | *old = fs->block_alloc_stats; |
| 106 | |
| 107 | fs->block_alloc_stats = func; |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 108 | } |