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authorJulius Hemanth Pitti <jpitti@cisco.com>2020-03-19 17:26:43 -0700
committerAnuj Mittal <anuj.mittal@intel.com>2020-03-20 10:01:06 +0800
commit8cbd6f6f7f10c57b27a1388883a6dc5715610600 (patch)
tree5120ed027fef4933e17d19be7e3f6a64f57d7f70
parentda2df0251098c46a1476983db379cf33010e3035 (diff)
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nfs-utils: Disable statx if using glibc emulation
nfs-utils 2.4.1, moves from "stat" to "statx with AT_STATX_DONT_SYNC" in parts of the code. statx is supported in Linux kernel v4.11 and above. For all older kernels glibc emulates statx, and it doesn't support AT_STATX_DONT_SYNC and will return EINVAL. When server uses nfs-utils 2.4.1 on kernel v4.10 and older, mount.nfs4 would fail with error "reason given by server: No such file or directory". Since Linux v4.4 and v4.9 are LTS, its more likely that people would use above combination. This issue has been fixed in nfs-utils 2.4.3 and above. Backporting fix to 2.4.1. Signed-off-by: Julius Hemanth Pitti <jpitti@cisco.com> Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
-rw-r--r--meta/recipes-connectivity/nfs-utils/nfs-utils/0001-Disable-statx-if-using-glibc-emulation.patch34
-rw-r--r--meta/recipes-connectivity/nfs-utils/nfs-utils_2.4.1.bb1
2 files changed, 35 insertions, 0 deletions
diff --git a/meta/recipes-connectivity/nfs-utils/nfs-utils/0001-Disable-statx-if-using-glibc-emulation.patch b/meta/recipes-connectivity/nfs-utils/nfs-utils/0001-Disable-statx-if-using-glibc-emulation.patch
new file mode 100644
index 00000000000..98b1391923d
--- /dev/null
+++ b/meta/recipes-connectivity/nfs-utils/nfs-utils/0001-Disable-statx-if-using-glibc-emulation.patch
@@ -0,0 +1,34 @@
+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
+
diff --git a/meta/recipes-connectivity/nfs-utils/nfs-utils_2.4.1.bb b/meta/recipes-connectivity/nfs-utils/nfs-utils_2.4.1.bb
index 7e80354e4e7..3ae8f965c88 100644
--- a/meta/recipes-connectivity/nfs-utils/nfs-utils_2.4.1.bb
+++ b/meta/recipes-connectivity/nfs-utils/nfs-utils_2.4.1.bb
@@ -33,6 +33,7 @@ SRC_URI = "${KERNELORG_MIRROR}/linux/utils/nfs-utils/${PV}/nfs-utils-${PV}.tar.x
file://0001-Makefile.am-fix-undefined-function-for-libnsm.a.patch \
file://0001-Don-t-build-tools-with-CC_FOR_BUILD.patch \
file://0001-Fix-include-order-between-config.h-and-stat.h.patch \
+ file://0001-Disable-statx-if-using-glibc-emulation.patch \
"
SRC_URI_append_libc-glibc = " file://0001-configure.ac-Do-not-fatalize-Wmissing-prototypes.patch"
SRC_URI_append_libc-musl = " file://nfs-utils-musl-res_querydomain.patch"