On 2023/5/6 19:45, Yangtao Li wrote:
Expend fallocate command to support more flags.
Signed-off-by: Yangtao Li <[email protected]>
---
tools/f2fs_io/f2fs_io.c | 37 ++++++++++++++++++++++++++++++++-----
1 file changed, 32 insertions(+), 5 deletions(-)
diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c
index 126e1f9..1be8c9e 100644
--- a/tools/f2fs_io/f2fs_io.c
+++ b/tools/f2fs_io/f2fs_io.c
@@ -416,6 +416,10 @@ static void do_pinfile(int argc, char **argv, const struct
cmd_desc *cmd)
"f2fs_io fallocate [keep_size] [offset] [length] [file]\n\n" \
It needs to update above description, and manual as well?
f2fs_io fallocate [-cipz] [keep_size] [offset] [length] [file]
Thanks,
"fallocate given the file\n" \
" [keep_size] : 1 or 0\n" \
+" -p : punch hole\n" \
+" -c : collapse range\n" \
+" -z : zero range\n" \
+" -i : insert range\n" \
static void do_fallocate(int argc, char **argv, const struct cmd_desc *cmd)
{
@@ -423,20 +427,43 @@ static void do_fallocate(int argc, char **argv, const
struct cmd_desc *cmd)
off_t offset, length;
struct stat sb;
int mode = 0;
+ int c;
- if (argc != 5) {
+ while ((c = getopt(argc, argv, "cipz")) != -1) {
+ switch (c) {
+ case 'c':
+ mode |= FALLOC_FL_COLLAPSE_RANGE;
+ break;
+ case 'i':
+ mode |= FALLOC_FL_INSERT_RANGE;
+ break;
+ case 'p':
+ mode |= FALLOC_FL_PUNCH_HOLE;
+ break;
+ case 'z':
+ mode |= FALLOC_FL_ZERO_RANGE;
+ break;
+ default:
+ fputs(cmd->cmd_help, stderr);
+ exit(2);
+ }
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc != 4) {
fputs("Excess arguments\n\n", stderr);
fputs(cmd->cmd_help, stderr);
exit(1);
}
- if (!strcmp(argv[1], "1"))
+ if (!strcmp(argv[0], "1"))
mode |= FALLOC_FL_KEEP_SIZE;
- offset = atoi(argv[2]);
- length = atoll(argv[3]);
+ offset = atoi(argv[1]);
+ length = atoll(argv[2]);
- fd = xopen(argv[4], O_RDWR, 0);
+ fd = xopen(argv[3], O_RDWR, 0);
if (fallocate(fd, mode, offset, length) != 0)
die_errno("fallocate failed");
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