[PATCH][PROGS] xfs_io: Allow setting multiple mode flags for fallocate()

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This allows testing FALLOC_FL_PUNCH_HOLE|FALLOC_FL_KEEP_SIZE.

Signed-off-by: Calvin Owens <calvinowens@xxxxxx>
---
 io/prealloc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/io/prealloc.c b/io/prealloc.c
index a9d66cc..2a4bcdc 100644
--- a/io/prealloc.c
+++ b/io/prealloc.c
@@ -201,19 +201,19 @@ fallocate_f(
 	while ((c = getopt(argc, argv, "cikpu")) != EOF) {
 		switch (c) {
 		case 'c':
-			mode = FALLOC_FL_COLLAPSE_RANGE;
+			mode |= FALLOC_FL_COLLAPSE_RANGE;
 			break;
 		case 'i':
-			mode = FALLOC_FL_INSERT_RANGE;
+			mode |= FALLOC_FL_INSERT_RANGE;
 			break;
 		case 'k':
-			mode = FALLOC_FL_KEEP_SIZE;
+			mode |= FALLOC_FL_KEEP_SIZE;
 			break;
 		case 'p':
-			mode = FALLOC_FL_PUNCH_HOLE;
+			mode |= FALLOC_FL_PUNCH_HOLE;
 			break;
 		case 'u':
-			mode = FALLOC_FL_UNSHARE_RANGE;
+			mode |= FALLOC_FL_UNSHARE_RANGE;
 			break;
 		default:
 			command_usage(&falloc_cmd);
-- 
2.9.3

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