If lseek() returns an unexpected error, it's useful to know the error
code to help connect it to the trouble spot inside the module.
Since the two seek functions should be basically identical, lift them
into a single generic function.
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Robert Evans <evansr@google.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes#17843
Rob Norris
1956417b54