-c "open $f" is broken in xfs_io <= 4.8. Using it results in an endless loop and xfs_io exists with error EMFILE. A fix for that bug makes "open" a 'one shot' command. Along with this fix, a new -C flag was introduced to explicitly request to execute a one shot command. Check for -C flag support as an indication that -c "open $f" is not broken. Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx> --- common/rc | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/common/rc b/common/rc index 2719b23..cd2e8eb 100644 --- a/common/rc +++ b/common/rc @@ -1757,6 +1757,14 @@ _require_xfs_io_command() echo $testio | egrep -q "Inappropriate ioctl" && \ _notrun "xfs_io $command support is missing" ;; + "open") + # -c "open $f" is broken in xfs_io <= 4.8. Along with the fix, + # a new -C flag was introduced to execute one shot commands. + # Check for -C flag support as an indication for the bug fix. + testio=`$XFS_IO_PROG -F -f -C "open $testfile" $testfile 2>&1` + echo $testio | egrep -q "invalid option" && \ + _notrun "xfs_io $command support is missing" + ;; *) testio=`$XFS_IO_PROG -c "$command help" 2>&1` esac -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
