[v4,5/7] qga/commands-posix: execute_fsfreeze_hook: use ga_run_command helper

Commit Message

Andrey Drobyshev March 20, 2024, 4:16 p.m. UTC

There's no need to check for the existence of the hook executable, as the
exec() call will do that for us.

Signed-off-by: Andrey Drobyshev <[e-mail]>
Reviewed-by: Daniel P. Berrangé <[e-mail]>
---
 qga/commands-posix.c | 35 +++--------------------------------
 1 file changed, 3 insertions(+), 32 deletions(-)

Patch

diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 545f3c99dc..9b993772f5 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -736,8 +736,6 @@  static const char *fsfreeze_hook_arg_string[] = {
 
 static void execute_fsfreeze_hook(FsfreezeHookArg arg, Error **errp)
 {
-    int status;
-    pid_t pid;
     const char *hook;
     const char *arg_str = fsfreeze_hook_arg_string[arg];
     Error *local_err = NULL;
@@ -746,42 +744,15 @@  static void execute_fsfreeze_hook(FsfreezeHookArg arg, Error **errp)
     if (!hook) {
         return;
     }
-    if (access(hook, X_OK) != 0) {
-        error_setg_errno(errp, errno, "can't access fsfreeze hook '%s'", hook);
-        return;
-    }
 
-    slog("executing fsfreeze hook with arg '%s'", arg_str);
-    pid = fork();
-    if (pid == 0) {
-        setsid();
-        reopen_fd_to_null(0);
-        reopen_fd_to_null(1);
-        reopen_fd_to_null(2);
-
-        execl(hook, hook, arg_str, NULL);
-        _exit(EXIT_FAILURE);
-    } else if (pid < 0) {
-        error_setg_errno(errp, errno, "failed to create child process");
-        return;
-    }
+    const char *argv[] = {hook, arg_str, NULL};
 
-    ga_wait_child(pid, &status, &local_err);
+    slog("executing fsfreeze hook with arg '%s'", arg_str);
+    ga_run_command(argv, NULL, "execute fsfreeze hook", &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         return;
     }
-
-    if (!WIFEXITED(status)) {
-        error_setg(errp, "fsfreeze hook has terminated abnormally");
-        return;
-    }
-
-    status = WEXITSTATUS(status);
-    if (status) {
-        error_setg(errp, "fsfreeze hook has failed with status %d", status);
-        return;
-    }
 }
 
 /*