Backport patch to handle EOPNOTSUPP on NFS

https://gitlab.gnome.org/GNOME/libglnx/-/merge_requests/18

0001-glnx-fdio-handle-EOPNOTSUPP-for-copy_file_range.patch

@@ -0,0 +1,38 @@
+From 7e3a19958e6af94b764c772a58adf47e6cc4b678 Mon Sep 17 00:00:00 2001
+From: Jonathan Lebon <jonathan@jlebon.com>
+Date: Tue, 16 Jun 2020 12:29:46 -0400
+Subject: [PATCH] glnx-fdio: handle EOPNOTSUPP for copy_file_range
+
+When using `copy_file_range` to target a source and dest on the same NFS
+mount on some older kernel versions, it's possible that we can get
+`EOPNOTSUPP` e.g. if the NFS server doesn't support server-side copy.
+
+We hit this in the FCOS release pipeline where we run `ostree
+pull-local` to pull content between two repos on the same mount from
+inside an OpenShift cluster on top of RHEL7.
+
+Nowadays, it seems like the kernel itself falls back to a more generic
+version of `copy_file_range()` at least. Though to be compatible with
+older kernels, let's add `EOPNOTSUPP` to the list of errors we interpret
+as "cfr possibly available, but can't be done for this specific
+operation".
+---
+ libglnx/glnx-fdio.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libglnx/glnx-fdio.c b/libglnx/glnx-fdio.c
+index 6ae6ec7..e537a9b 100644
+--- a/libglnx/glnx-fdio.c
++++ b/libglnx/glnx-fdio.c
+@@ -826,7 +826,7 @@ glnx_regfile_copy_bytes (int fdf, int fdt, off_t max_bytes)
+                   have_cfr = 0;
+                   try_cfr = false;
+                 }
+-              else if (errno == EXDEV)
++              else if (G_IN_SET (errno, EXDEV, EOPNOTSUPP))
+                 /* We won't try cfr again for this run, but let's be
+                  * conservative and not mark it as available/unavailable until
+                  * we know for sure.
+-- 
+2.26.2
+

ostree.spec

@@ -8,7 +8,7 @@
 Summary: Tool for managing bootable, immutable filesystem trees
 Name: ostree
 Version: 2020.3
-Release: 4%{?dist}
+Release: 5%{?dist}
 Source0: https://github.com/ostreedev/%{name}/releases/download/v%{version}/libostree-%{version}.tar.xz
 License: LGPLv2+
 URL: https://ostree.readthedocs.io/en/latest/
@@ -17,6 +17,7 @@ Patch0: 0001-lib-commit-Add-more-error-prefixing.patch
 Patch1: 0002-lib-Rename-function-for-staging-dir-check.patch
 Patch2: 0003-lib-commit-Check-that-dirent-is-a-directory-before-c.patch
 Patch3: 0001-switchroot-remount-Neuter-sysroot.readonly-for-now.patch
+Patch4: 0001-glnx-fdio-handle-EOPNOTSUPP-for-copy_file_range.patch
 
 BuildRequires: git
 # We always run autogen.sh
@@ -167,6 +168,10 @@ find %{buildroot} -name '*.la' -delete
 %endif
 
 %changelog
+* Thu Jun 18 2020 Jonathan Lebon <jonathan@jlebon.com> - 2020.3-5
+- Backport patch to handle EOPNOTSUPP on NFS:
+  https://gitlab.gnome.org/GNOME/libglnx/-/merge_requests/18
+
 * Thu May 21 2020 Jonathan Lebon <jonathan@jlebon.com> - 2020.3-4
 - Backport patch to neuter sysroot.readonly for FCOS
   https://github.com/coreos/fedora-coreos-tracker/issues/488