Expend fallocate command to support more flags.
Signed-off-by: Yangtao Li <frank...@vivo.com>
---
v3:
-update man/f2fs_io.8
man/f2fs_io.8 | 19 ++++++++++++++++++-
tools/f2fs_io/f2fs_io.c | 39 +++++++++++++++++++++++++++++++++------
2 files changed, 51 insertions(+), 7 deletions(-)
diff --git a/man/f2fs_io.8 b/man/f2fs_io.8
index c5eadde..450f1b7 100644
--- a/man/f2fs_io.8
+++ b/man/f2fs_io.8
@@ -43,10 +43,27 @@ going down with fsck mark
\fBpinfile\fR \fI[get|set] [file]\fR
Get or set the pinning status on a file.
.TP
-\fBfallocate\fR \fI[keep_size] [offset] [length] [file]\fR
+\fBfallocate\fR \fI[-c] [-i] [-p] [-z] [keep_size] [offset] [length] [file]\fR
Request that space be allocated on a file. The
.I keep_size
parameter can be either 1 or 0.
+The
+.I pattern
+parameter can be:
+.RS 1.2in
+.TP
+.B -c
+collapse range
+.TP
+.B -i
+insert range
+.TP
+.B -p
+punch hole
+.TP
+.B -z
+zero range
+.RE
.TP
\fBwrite\fR \fI[chunk_size in 4kb] [offset in chunk_size] [count] [pattern]
[IO] [file_path]\fR
Write a given pattern to
diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c
index 1774eca..b4e7307 100644
--- a/tools/f2fs_io/f2fs_io.c
+++ b/tools/f2fs_io/f2fs_io.c
@@ -413,9 +413,13 @@ static void do_pinfile(int argc, char **argv, const struct
cmd_desc *cmd)
#define fallocate_desc "fallocate"
#define fallocate_help \
-"f2fs_io fallocate [keep_size] [offset] [length] [file]\n\n" \
+"f2fs_io fallocate [-c] [-i] [-p] [-z] [keep_size] [offset] [length]
[file]\n\n" \
"fallocate given the file\n" \
" [keep_size] : 1 or 0\n" \
+" -c : collapse range\n" \
+" -i : insert range\n" \
+" -p : punch hole\n" \
+" -z : zero 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");
--
2.39.0
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