On 2023/5/4 22:44, Yangtao Li wrote:
This patch supports a new sub-command 'move_range' in f2fs_io
to move a range of data blocks from source file to destination
file via F2FS_IOC_MOVE_RANGE ioctl.
Signed-off-by: Yangtao Li <frank...@vivo.com>
---
man/f2fs_io.8 | 4 ++++
tools/f2fs_io/f2fs_io.c | 35 +++++++++++++++++++++++++++++++++++
2 files changed, 39 insertions(+)
diff --git a/man/f2fs_io.8 b/man/f2fs_io.8
index 13d4bf3..b25f807 100644
--- a/man/f2fs_io.8
+++ b/man/f2fs_io.8
@@ -138,8 +138,12 @@ Trigger filesystem GC
.TP
\fBcheckpoint\fR \fI[file]\fR
Trigger filesystem checkpoint
+.TP
\fBprecache_extents\fR \fI[file]\fR
Trigger precache extents
+.TP
+\fBmove_range\fR \fI[src_path] [dst_path] [src_start] [dst_start] [length]\fR
+Move a range of data blocks from source file to destination file
.SH AUTHOR
This version of
.B f2fs_io
diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c
index ac7b588..d545d8e 100644
--- a/tools/f2fs_io/f2fs_io.c
+++ b/tools/f2fs_io/f2fs_io.c
@@ -1357,6 +1357,40 @@ static void do_precache_extents(int argc, char **argv,
const struct cmd_desc *cm
exit(0);
}
+#define move_range_desc "moving a range of data blocks from source file to destination file"
+#define move_range_help \
+"f2fs_io move_range [src_path] [dst_path] [src_start] [dst_start]
[length]\n\n" \
It's better to wrap the long line as below?
#define move_range_help \
"f2fs_io move_range [src_path] [dst_path] [src_start] [dst_start] " \
"[length]\n\n" \
Thanks,
+" src_path : path to source file\n" \
+" dst_path : path to destination file\n" \
+" src_start : start offset of src file move region, unit: bytes\n" \
+" dst_start : start offset of dst file move region, unit: bytes\n" \
+" length : size to move\n" \
+
+static void do_move_range(int argc, char **argv, const struct cmd_desc *cmd)
+{
+ struct f2fs_move_range range;
+ int ret, fd;
+
+ if (argc != 6) {
+ fputs("Excess arguments\n\n", stderr);
+ fputs(cmd->cmd_help, stderr);
+ exit(1);
+ }
+
+ fd = xopen(argv[1], O_RDWR, 0);
+ range.dst_fd = xopen(argv[2], O_RDWR | O_CREAT, 0644);
+ range.pos_in = atoi(argv[3]);
+ range.pos_out = atoi(argv[4]);
+ range.len = atoi(argv[5]);
+
+ ret = ioctl(fd, F2FS_IOC_MOVE_RANGE, &range);
+ if (ret < 0)
+ die_errno("F2FS_IOC_MOVE_RANGE failed");
+
+ printf("move range ret=%d\n", ret);
+ exit(0);
+}
+
#define CMD_HIDDEN 0x0001
#define CMD(name) { #name, do_##name, name##_desc, name##_help, 0 }
#define _CMD(name) { #name, do_##name, NULL, NULL, CMD_HIDDEN }
@@ -1391,6 +1425,7 @@ const struct cmd_desc cmd_list[] = {
CMD(gc),
CMD(checkpoint),
CMD(precache_extents),
+ CMD(move_range),
{ NULL, NULL, NULL, NULL, 0 }
};
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