From: Christoph Hellwig <hch@infradead.org>
Date: Sat, 5 Mar 2011 00:22:24 +0000 (+0000)
Subject: xfs_io: add -p for hole punching to falloc command
X-Git-Tag: v3.1.5~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bda4979e896859db9b208eed39eb4a1daad02db1;p=thirdparty%2Fxfsprogs-dev.git

xfs_io: add -p for hole punching to falloc command

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
---

diff --git a/io/prealloc.c b/io/prealloc.c
index c8b7df658..49ae295a3 100644
--- a/io/prealloc.c
+++ b/io/prealloc.c
@@ -25,6 +25,10 @@
 #include "init.h"
 #include "io.h"
 
+#ifndef FALLOC_FL_PUNCH_HOLE
+#define FALLOC_FL_PUNCH_HOLE	0x02
+#endif
+
 static cmdinfo_t allocsp_cmd;
 static cmdinfo_t freesp_cmd;
 static cmdinfo_t resvsp_cmd;
@@ -154,11 +158,14 @@ fallocate_f(
 	int		mode = 0;
 	int		c;
 
-	while ((c = getopt(argc, argv, "k")) != EOF) {
+	while ((c = getopt(argc, argv, "kp")) != EOF) {
 		switch (c) {
 		case 'k':
 			mode = FALLOC_FL_KEEP_SIZE;
 			break;
+		case 'p':
+			mode = FALLOC_FL_PUNCH_HOLE;
+			break;
 		default:
 			command_usage(&falloc_cmd);
 		}
@@ -236,7 +243,7 @@ prealloc_init(void)
 	falloc_cmd.argmin = 2;
 	falloc_cmd.argmax = -1;
 	falloc_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
-	falloc_cmd.args = _("[-k] off len");
+	falloc_cmd.args = _("[-k] [-p] off len");
 	falloc_cmd.oneline =
 		_("allocates space associated with part of a file via fallocate");