From: Francis Deslauriers <francis.deslauriers@efficios.com>
Date: Mon, 9 Mar 2020 14:49:51 +0000 (-0400)
Subject: directory-handle: print `errno` reason on `unlinkat()` error
X-Git-Tag: v2.12.0-rc2~28
X-Git-Url: https://git.liburcu.org/?a=commitdiff_plain;h=f7eeabf375b9a008b03d5dedc06f3974d1b6f7ac;p=lttng-tools.git

directory-handle: print `errno` reason on `unlinkat()` error

This is helpful while troubleshooting clear and rotation issues.

Signed-off-by: Francis Deslauriers <francis.deslauriers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: I92f9551a49fced7603c8dca832566de71b188528
---

diff --git a/src/common/compat/directory-handle.c b/src/common/compat/directory-handle.c
index a790c5b79..aea4be5fe 100644
--- a/src/common/compat/directory-handle.c
+++ b/src/common/compat/directory-handle.c
@@ -355,7 +355,12 @@ static
 int lttng_directory_handle_rmdir(
 		const struct lttng_directory_handle *handle, const char *name)
 {
-	return unlinkat(handle->dirfd, name, AT_REMOVEDIR);
+	int ret = unlinkat(handle->dirfd, name, AT_REMOVEDIR);
+	if (ret) {
+		PERROR("Failed to remove directory `%s`", name);
+	}
+
+	return ret;
 }
 
 static