lgcosta/reiserfsprogs
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Imported reiserfsprogs-3.6.9

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This commit is contained in:
Jeff Mahoney committed 2012-10-11 11:29:29 -04:00
1 parent 99c89460c3
commit cccefa4d84
86 files changed
+13393 -6954
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resize_reiserfs/do_shrink.c
+26 -17
View File
@@ -1,10 +1,11 @@
/*
* Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
* Copyright 2000-2003 by Hans Reiser, licensing governed by
* reiserfsprogs/README
*/
#include "resize.h"
#include <time.h>
static unsigned long int_node_cnt = 0, int_moved_cnt = 0;
static unsigned long leaf_node_cnt = 0, leaf_moved_cnt = 0;
static unsigned long unfm_node_cnt = 0, unfm_moved_cnt = 0;
@@ -55,6 +56,9 @@ static unsigned long move_generic_block(reiserfs_filsys_t * fs, unsigned long bl
/* move wrong block */
bh = bread(fs->fs_dev, block, fs->fs_blocksize);
if (!bh)
reiserfs_panic ("move_generic_block: bread failed.\n");
reiserfs_bitmap_find_zero_bit(bmp, &unused_block);
if (unused_block == 0 || unused_block >= bnd) {
fputs ("resize_reiserfs: can\'t find free block\n", stderr);
@@ -95,7 +99,7 @@ static unsigned long move_formatted_block(reiserfs_filsys_t * fs, unsigned long
struct item_head *ih;
unsigned long new_blocknr = 0;
int node_is_internal = 0;
int i, j;
unsigned int i, j;
bh = bread(fs->fs_dev, block, fs->fs_blocksize);
if (!bh)
@@ -105,7 +109,7 @@ static unsigned long move_formatted_block(reiserfs_filsys_t * fs, unsigned long
leaf_node_cnt++;
for (i=0; i < B_NR_ITEMS(bh); i++) {
for (i = 0; i < B_NR_ITEMS(bh); i++) {
ih = B_N_PITEM_HEAD(bh, i);
if (is_indirect_ih(ih)) {
__u32 * indirect;
@@ -172,11 +176,11 @@ int shrink_fs(reiserfs_filsys_t * fs, unsigned long blocks)
int c;
printf(
"You are running BETA version of reiserfs shrinker.\n"
"This version is only for testing or VERY CAREFUL use.\n"
"Backup of you data is recommended.\n\n"
"Do you want to continue? [y/N]:"
);
"You are running BETA version of reiserfs shrinker.\n"
"This version is only for testing or VERY CAREFUL use.\n"
"Backup of you data is recommended.\n\n"
"Do you want to continue? [y/N]:"
);
fflush(stdout);
c = getchar();
if (c != 'y' && c != 'Y')
@@ -186,18 +190,22 @@ int shrink_fs(reiserfs_filsys_t * fs, unsigned long blocks)
bmap_nr_new = (blocks - 1) / (8 * fs->fs_blocksize) + 1;
/* is shrinking possible ? */
if (get_sb_block_count(ondisk_sb) - blocks > get_sb_free_blocks(ondisk_sb) + get_sb_bmap_nr(ondisk_sb) - bmap_nr_new) {
fprintf(stderr, "resize_reiserfs: can\'t shrink fs; too many blocks already allocated\n");
if (get_sb_block_count(ondisk_sb) - blocks >
get_sb_free_blocks(ondisk_sb) + get_sb_bmap_nr(ondisk_sb) -
bmap_nr_new)
{
fprintf(stderr, "resize_reiserfs: can\'t shrink fs; too many "
"blocks already allocated\n");
return -1;
}
reiserfs_reopen(fs, O_RDWR);
if (!reiserfs_open_ondisk_bitmap (fs))
if (reiserfs_open_ondisk_bitmap (fs))
DIE("cannot open ondisk bitmap");
bmp = fs->fs_bitmap2;
ondisk_sb = fs->fs_ondisk_sb;
set_sb_fs_state (fs->fs_ondisk_sb, REISERFS_CORRUPTED);
set_sb_fs_state (fs->fs_ondisk_sb, FS_ERROR);
mark_buffer_uptodate(fs->fs_super_bh, 1);
mark_buffer_dirty(fs->fs_super_bh);
bwrite(fs->fs_super_bh);
@@ -218,10 +226,11 @@ int shrink_fs(reiserfs_filsys_t * fs, unsigned long blocks)
fflush(stdout);
}
n_root_block = move_formatted_block(fs, get_sb_root_block(ondisk_sb), blocks, 0);
if (n_root_block) {
set_sb_root_block (ondisk_sb, n_root_block);
}
n_root_block = move_formatted_block(fs, get_sb_root_block(ondisk_sb),
blocks, 0);
if (n_root_block)
set_sb_root_block (ondisk_sb, n_root_block);
if (opt_verbose)
printf ("\n\nnodes processed (moved):\n"