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another -90 bytes. That #define is **evil**
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parent
66b86c6902
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016a82e279
@ -503,8 +503,10 @@ static void make_root_inode2(void)
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static void setup_tables(void)
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{
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int i;
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unsigned long inodes;
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unsigned norm_firstzone;
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uint16_t sb_zmaps;
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int i;
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memset(super_block_buffer, 0, BLOCK_SIZE);
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memset(boot_block_buffer, 0, 512);
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@ -539,19 +541,21 @@ static void setup_tables(void)
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* dd if=/dev/zero of=test.fs count=10 bs=1024
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* mkfs.minix -i 200 test.fs
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*/
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/* This code is not insane: NORM_FIRSTZONE is not a constant, */
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/* it uses previous value of SB_ZMAPS inside */
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/* This code is not insane: NORM_FIRSTZONE is not a constant,
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* it is calculated from SB_INODES, SB_IMAPS and SB_ZMAPS */
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i = 999;
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SB_ZMAPS = 0;
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do {
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uint16_t t = div_roundup(total_blocks - NORM_FIRSTZONE + 1, BITS_PER_BLOCK);
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if (SB_ZMAPS == t) goto got_it;
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SB_ZMAPS = t;
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norm_firstzone = NORM_FIRSTZONE;
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sb_zmaps = div_roundup(total_blocks - norm_firstzone + 1, BITS_PER_BLOCK);
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if (SB_ZMAPS == sb_zmaps) goto got_it;
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SB_ZMAPS = sb_zmaps;
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/* new SB_ZMAPS, need to recalc NORM_FIRSTZONE */
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} while (--i);
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bb_error_msg_and_die("incompatible size/inode count, try different -i N");
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got_it:
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SB_FIRSTZONE = NORM_FIRSTZONE;
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SB_FIRSTZONE = norm_firstzone;
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inode_map = xmalloc(SB_IMAPS * BLOCK_SIZE);
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zone_map = xmalloc(SB_ZMAPS * BLOCK_SIZE);
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memset(inode_map, 0xff, SB_IMAPS * BLOCK_SIZE);
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@ -563,7 +567,7 @@ static void setup_tables(void)
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inode_buffer = xzalloc(INODE_BUFFER_SIZE);
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printf("%ld inodes\n", (long)SB_INODES);
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printf("%ld blocks\n", (long)SB_ZONES);
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printf("Firstdatazone=%ld (%ld)\n", (long)SB_FIRSTZONE, (long)NORM_FIRSTZONE);
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printf("Firstdatazone=%ld (%ld)\n", (long)SB_FIRSTZONE, (long)norm_firstzone);
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printf("Zonesize=%d\n", BLOCK_SIZE << SB_ZONE_SIZE);
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printf("Maxsize=%ld\n", (long)SB_MAXSIZE);
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}
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