[PATCH v4 1/4] xfs_io: Disable -V if pwritev is not available

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From: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>

This results in default case which will display the error message
that command is not found. This is required for xfs_io builds which
did not support pwritev and an attempt is made to use -V.

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
---
 io/pwrite.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/io/pwrite.c b/io/pwrite.c
index 1c5dfca1..5f149a68 100644
--- a/io/pwrite.c
+++ b/io/pwrite.c
@@ -312,6 +312,7 @@ pwrite_f(
 		case 'u':
 			uflag = 1;
 			break;
+#ifdef HAVE_PWRITEV
 		case 'V':
 			vectors = strtoul(optarg, &sp, 0);
 			if (!sp || sp == optarg) {
@@ -320,6 +321,7 @@ pwrite_f(
 				return 0;
 			}
 			break;
+#endif
 		case 'w':
 			wflag = 1;
 			break;
@@ -334,6 +336,7 @@ pwrite_f(
 			}
 			break;
 		default:
+			printf(_("command -%c not supported\n"), c);
 			return command_usage(&pwrite_cmd);
 		}
 	}
-- 
2.14.2

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