From: Darrick J. Wong <darrick.wong@oracle.com>
Date: Sat, 18 Oct 2014 16:15:03 +0000 (-0400)
Subject: contrib: add support for COLLAPSE_RANGE and ZERO_RANGE to falocate program
X-Git-Tag: v1.43-WIP-2015-05-18~155
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8467b3bec8bb35d5afd0370b2d2a2703e33dd686;p=thirdparty%2Fe2fsprogs.git

contrib: add support for COLLAPSE_RANGE and ZERO_RANGE to falocate program

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

diff --git a/contrib/fallocate.c b/contrib/fallocate.c
index 1f9b59ad5..01d4af7d0 100644
--- a/contrib/fallocate.c
+++ b/contrib/fallocate.c
@@ -36,6 +36,8 @@
 // #include <linux/falloc.h>
 #define FALLOC_FL_KEEP_SIZE	0x01
 #define FALLOC_FL_PUNCH_HOLE	0x02 /* de-allocates range */
+#define FALLOC_FL_COLLAPSE_RANGE	0x08
+#define FALLOC_FL_ZERO_RANGE		0x10
 
 void usage(void)
 {
@@ -95,7 +97,7 @@ int main(int argc, char **argv)
 	int	error;
 	int	tflag = 0;
 
-	while ((opt = getopt(argc, argv, "npl:o:t")) != -1) {
+	while ((opt = getopt(argc, argv, "npl:o:tzc")) != -1) {
 		switch(opt) {
 		case 'n':
 			/* do not change filesize */
@@ -106,6 +108,16 @@ int main(int argc, char **argv)
 			falloc_mode = (FALLOC_FL_PUNCH_HOLE |
 				       FALLOC_FL_KEEP_SIZE);
 			break;
+		case 'c':
+			/* collapse range mode */
+			falloc_mode = (FALLOC_FL_COLLAPSE_RANGE |
+				       FALLOC_FL_KEEP_SIZE);
+			break;
+		case 'z':
+			/* zero range mode */
+			falloc_mode = (FALLOC_FL_ZERO_RANGE |
+				       FALLOC_FL_KEEP_SIZE);
+			break;
 		case 'l':
 			length = cvtnum(optarg);
 			break;