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Fix zed/udev thrashing due to autoexpand=on #7393

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Fix zed/udev thrashing due to autoexpand=on #7393

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11 changes: 7 additions & 4 deletions lib/libzfs/libzfs_pool.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2454,12 +2454,15 @@ zpool_relabel_disk(libzfs_handle_t *hdl, const char *path, const char *msg)
*
* Also, we don't call efi_rescan() - that would just return EBUSY.
* The module will do it for us in vdev_disk_open().
*
* On success flush the buffers to disk and invalidate the page cache
* to ensure a consistent view of the relabled device.
*/
error = efi_use_whole_disk(fd);

/* Flush the buffers to disk and invalidate the page cache. */
(void) fsync(fd);
(void) ioctl(fd, BLKFLSBUF);
if (error == 0) {
(void) fsync(fd);
(void) ioctl(fd, BLKFLSBUF);
}

(void) close(fd);
if (error && error != VT_ENOSPC) {
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