41 lines
861 B
C
41 lines
861 B
C
#include <libcbd.h>
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#include <libdevmapper.h>
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#include <cbdutil.h>
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int
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cbd_tune(const char* dev,
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bool zero_detect, uint level, bool repack)
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{
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int fd;
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uint8_t header_buf[SECTOR_SIZE];
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struct cbd_header header;
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fd = open(dev, O_RDWR);
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if (fd < 0) {
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error("Cannot open device");
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}
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pblk_read(fd, SECTOR_SIZE, 0, 1, header_buf);
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cbd_header_get(header_buf, &header);
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cbd_check_header(&header);
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if (zero_detect) {
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header.params.flags |= CBD_FLAG_DETECT_ZEROS;
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}
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else {
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header.params.flags &= ~CBD_FLAG_DETECT_ZEROS;
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}
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if (level) {
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cbd_compression_level_put(&header.params, level);
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}
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cbd_header_put(header_buf, &header);
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pblk_write(fd, SECTOR_SIZE, 0, 1, header_buf);
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if (repack) {
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error("repack not supported yet\n");
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}
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return 0;
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}
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