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Enable zhack to work properly with 4k sector size disks

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Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Closes #17576
This commit is contained in:
Paul Dagnelie
2025-09-09 12:09:35 -07:00
committed by Brian Behlendorf
parent 8f15d2e4d5
commit bc4aac0395
7 changed files with 19 additions and 9 deletions
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lib/libzpool/kernel.c
+3 -3
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@@ -1238,7 +1238,7 @@ zfs_file_write(zfs_file_t *fp, const void *buf, size_t count, ssize_t *resid)
*/
int
zfs_file_pwrite(zfs_file_t *fp, const void *buf,
size_t count, loff_t pos, ssize_t *resid)
size_t count, loff_t pos, uint8_t ashift, ssize_t *resid)
{
ssize_t rc, split, done;
int sectors;
@@ -1248,8 +1248,8 @@ zfs_file_pwrite(zfs_file_t *fp, const void *buf,
* system calls so that the process can be killed in between.
* This is used by ztest to simulate realistic failure modes.
*/
sectors = count >> SPA_MINBLOCKSHIFT;
split = (sectors > 0 ? rand() % sectors : 0) << SPA_MINBLOCKSHIFT;
sectors = count >> ashift;
split = (sectors > 0 ? rand() % sectors : 0) << ashift;
rc = pwrite64(fp->f_fd, buf, split, pos);
if (rc != -1) {
done = rc;