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Implement argp support for mkfs and add --force

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Support max-meta-size and max-data-size using KMGTP units with rounding.

Detect other fs signatures using blkid library.

Detect ScoutFS super using magic value.

Move read_block() from print.c into util.c since blkid also needs it.

Signed-off-by: Andy Grover <agrover@versity.com>
This commit is contained in:
Andy Grover
2020-12-02 12:48:55 -08:00
parent 6b5ddf2b3a
commit 7befc61482
8 changed files with 270 additions and 128 deletions
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28
utils/src/print.c
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@@ -26,34 +26,6 @@
#include "srch.h"
#include "leaf_item_hash.h"
static int read_block(int fd, u64 blkno, int shift, void **ret_val)
{
size_t size = 1ULL << shift;
void *buf;
int ret;
*ret_val = NULL;
buf = malloc(size);
if (!buf)
return -ENOMEM;
ret = pread(fd, buf, size, blkno << shift);
if (ret == -1) {
fprintf(stderr, "read blkno %llu returned %d: %s (%d)\n",
blkno, ret, strerror(errno), errno);
free(buf);
return -errno;
} else if (ret != size) {
fprintf(stderr, "incomplete pread\n");
free(buf);
return -EINVAL;
} else {
*ret_val = buf;
return 0;
}
}
static void print_block_header(struct scoutfs_block_header *hdr, int size)
{
u32 crc = crc_block(hdr, size);