Imbus/writeimg
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Flush block device with ioctl before reading it back

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Imbus 2026-02-07 17:24:16 +01:00
parent c08ee6a738
commit 13e27bbcc1
1 changed files with 8 additions and 0 deletions
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8
writeimg.c
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@ -11,6 +11,11 @@
#include <sys/stat.h> #include <sys/stat.h>
#include <unistd.h> #include <unistd.h>
#if __linux__
#include <linux/fs.h> /* IOTCL flush number */
#include <sys/ioctl.h> /* IOCTL */
#endif
#ifndef GITREV #ifndef GITREV
#define GITREV "unknown" #define GITREV "unknown"
#endif #endif
@ -142,6 +147,9 @@ int perform_write(write_job_t *job) {
memset(job->buffer, 0, BLOCKSIZE); memset(job->buffer, 0, BLOCKSIZE);
memset(job->buffer2, 0, BLOCKSIZE); memset(job->buffer2, 0, BLOCKSIZE);
/* This is essentially $ blockdev --flushbufs */
ioctl(block_fd, BLKFLSBUF);
int crc_back = crc32_init(); int crc_back = crc32_init();
b_written = 0; b_written = 0;