Support to freeze and thaw filesystem.
Signed-off-by: Chao Yu <[email protected]>
---
man/f2fs_io.8 | 6 ++++++
tools/f2fs_io/f2fs_io.c | 48 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 54 insertions(+)
diff --git a/man/f2fs_io.8 b/man/f2fs_io.8
index 708a583..5c3d204 100644
--- a/man/f2fs_io.8
+++ b/man/f2fs_io.8
@@ -215,6 +215,12 @@ Initialized to create files only.
.B -v
Verbose mode.
.RE
+.TP
+\fBfreeze\fR \fI[directory]\fR
+Freeze filesystem that directory belongs to.
+.TP
+\fBthaw\fR \fI[directory]\fR
+Thaw filesystem that directory belongs to.
.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 9baea2b..1f26c7c 100644
--- a/tools/f2fs_io/f2fs_io.c
+++ b/tools/f2fs_io/f2fs_io.c
@@ -2454,6 +2454,52 @@ static void do_test_lookup_perf(int argc, char **argv,
const struct cmd_desc *cm
exit(0);
}
+#define freeze_desc "freeze filesystem"
+#define freeze_help "f2fs_io freeze [directory_path]\n\n"
+
+static void do_freeze(int argc, char **argv, const struct cmd_desc *cmd)
+{
+ int ret, fd;
+
+ if (argc != 2) {
+ fputs("Excess arguments\n\n", stderr);
+ fputs(cmd->cmd_help, stderr);
+ exit(1);
+ }
+
+ fd = xopen(argv[1], O_DIRECTORY, 0);
+
+ ret = ioctl(fd, FIFREEZE);
+ if (ret < 0)
+ die_errno("FIFREEZE failed");
+
+ printf("freeze filesystem ret=%d\n", ret);
+ exit(0);
+}
+
+#define thaw_desc "thaw filesystem"
+#define thaw_help "f2fs_io thaw [directory_path]\n\n"
+
+static void do_thaw(int argc, char **argv, const struct cmd_desc *cmd)
+{
+ int ret, fd;
+
+ if (argc != 2) {
+ fputs("Excess arguments\n\n", stderr);
+ fputs(cmd->cmd_help, stderr);
+ exit(1);
+ }
+
+ fd = xopen(argv[1], O_DIRECTORY, 0);
+
+ ret = ioctl(fd, FITHAW);
+ if (ret < 0)
+ die_errno("FITHAW failed");
+
+ printf("thaw filesystem 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 }
@@ -2504,6 +2550,8 @@ const struct cmd_desc cmd_list[] = {
CMD(ftruncate),
CMD(test_create_perf),
CMD(test_lookup_perf),
+ CMD(freeze),
+ CMD(thaw),
{ NULL, NULL, NULL, NULL, 0 }
};
--
2.49.0
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