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From ff3ad88c233ecd87f7983ad13836323f944540ec Mon Sep 17 00:00:00 2001
From: Doug Nazar <nazard@nazar.ca>
Date: Mon, 9 Dec 2019 10:53:37 -0500
Subject: [PATCH] Disable statx if using glibc emulation
On older kernels without statx, glibc with statx support will attempt
to emulate the call. However it doesn't support AT_STATX_DONT_SYNC and
will return EINVAL. This causes all xstat/xlstat calls to fail.
Upstream-Status: Backport
Signed-off-by: Doug Nazar <nazard@nazar.ca>
Signed-off-by: Steve Dickson <steved@redhat.com>
---
support/misc/xstat.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/support/misc/xstat.c b/support/misc/xstat.c
index 661e29e4..a438fbcc 100644
--- a/support/misc/xstat.c
+++ b/support/misc/xstat.c
@@ -51,6 +51,9 @@ statx_do_stat(int fd, const char *pathname, struct stat *statbuf, int flags)
statx_copy(statbuf, &stxbuf);
return 0;
}
+ /* glibc emulation doesn't support AT_STATX_DONT_SYNC */
+ if (errno == EINVAL)
+ errno = ENOSYS;
if (errno == ENOSYS)
statx_supported = 0;
} else
--
2.19.1
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