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https://github.com/util-linux/util-linux/issues/2409
https://github.com/util-linux/util-linux/commit/91c2cbdf3a04f2f3f4c4bb0d2a6053874bfa11ea
From 91c2cbdf3a04f2f3f4c4bb0d2a6053874bfa11ea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= <thomas@t-8ch.de>
Date: Thu, 3 Aug 2023 07:13:28 +0200
Subject: [PATCH] libmount: (utils) fix statx fallback
MIME-Version: 1.0
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If the systemcall is not available ENOSYS is returned.
Under glibc the statx implementation also has its own fallback logic.
As AT_STATX_DONT_SYNC can't be implemented correctly in that fallback
logic the wrapper will return EINVAL in case the emulation is needed and
AT_STATX_DONT_SYNC is set.
So also use our own fallback in that case.
Fixes: #2409
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
--- a/libmount/src/utils.c
+++ b/libmount/src/utils.c
@@ -133,7 +133,8 @@ static int safe_stat(const char *target, struct stat *st, int nofollow)
st->st_mode = stx.stx_mode;
}
- if (rc == 0 || errno != EOPNOTSUPP)
+ if (rc == 0 ||
+ (errno != EOPNOTSUPP && errno != ENOSYS && errno != EINVAL))
return rc;
}
#endif
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