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contrib/fallocate: add support for punch functionality 

Also fix the -o option so it works correctly (instead of core
dumping).

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
debian-1.42.9
Theodore Ts'o 2012-12-06 11:21:44 -05:00
parent 5e27a274d3
commit 2658b9616f
1 changed files with 7 additions and 1 deletions
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8
contrib/fallocate.c
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@ -35,6 +35,7 @@
// #include <linux/falloc.h>
#define FALLOC_FL_KEEP_SIZE 0x01
#define FALLOC_FL_PUNCH_HOLE 0x02 /* de-allocates range */
void usage(void)
{
@ -94,12 +95,17 @@ int main(int argc, char **argv)
int error;
int tflag = 0;
while ((opt = getopt(argc, argv, "nl:ot")) != -1) {
while ((opt = getopt(argc, argv, "npl:o:t")) != -1) {
switch(opt) {
case 'n':
/* do not change filesize */
falloc_mode = FALLOC_FL_KEEP_SIZE;
break;
case 'p':
/* punch mode */
falloc_mode = (FALLOC_FL_PUNCH_HOLE |
FALLOC_FL_KEEP_SIZE);
break;
case 'l':
length = cvtnum(optarg);
break;