Merge tag 'v4.20-rc5' into for-4.21/block

Pull in v4.20-rc5, solving a conflict we'll otherwise get in aio.c and
also getting the merge fix that went into mainline that users are
hitting testing for-4.21/block and/or for-next.

* tag 'v4.20-rc5': (664 commits)
  Linux 4.20-rc5
  PCI: Fix incorrect value returned from pcie_get_speed_cap()
  MAINTAINERS: Update linux-mips mailing list address
  ocfs2: fix potential use after free
  mm/khugepaged: fix the xas_create_range() error path
  mm/khugepaged: collapse_shmem() do not crash on Compound
  mm/khugepaged: collapse_shmem() without freezing new_page
  mm/khugepaged: minor reorderings in collapse_shmem()
  mm/khugepaged: collapse_shmem() remember to clear holes
  mm/khugepaged: fix crashes due to misaccounted holes
  mm/khugepaged: collapse_shmem() stop if punched or truncated
  mm/huge_memory: fix lockdep complaint on 32-bit i_size_read()
  mm/huge_memory: splitting set mapping+index before unfreeze
  mm/huge_memory: rename freeze_page() to unmap_page()
  initramfs: clean old path before creating a hardlink
  kernel/kcov.c: mark funcs in __sanitizer_cov_trace_pc() as notrace
  psi: make disabling/enabling easier for vendor kernels
  proc: fixup map_files test on arm
  debugobjects: avoid recursive calls with kmemleak
  userfaultfd: shmem: UFFDIO_COPY: set the page dirty if VM_WRITE is not set
  ...

1 files changed, 52 insertions, 0 deletions

diff --git a/fs/afs/misc.c b/fs/afs/misc.c
index 700a5fa7f4ec..bbb1fd51b019 100644
--- a/fs/afs/misc.c
+++ b/fs/afs/misc.c
@@ -118,3 +118,55 @@ int afs_abort_to_error(u32 abort_code)
 	default:		return -EREMOTEIO;
 	}
 }
+
+/*
+ * Select the error to report from a set of errors.
+ */
+void afs_prioritise_error(struct afs_error *e, int error, u32 abort_code)
+{
+	switch (error) {
+	case 0:
+		return;
+	default:
+		if (e->error == -ETIMEDOUT ||
+		    e->error == -ETIME)
+			return;
+	case -ETIMEDOUT:
+	case -ETIME:
+		if (e->error == -ENOMEM ||
+		    e->error == -ENONET)
+			return;
+	case -ENOMEM:
+	case -ENONET:
+		if (e->error == -ERFKILL)
+			return;
+	case -ERFKILL:
+		if (e->error == -EADDRNOTAVAIL)
+			return;
+	case -EADDRNOTAVAIL:
+		if (e->error == -ENETUNREACH)
+			return;
+	case -ENETUNREACH:
+		if (e->error == -EHOSTUNREACH)
+			return;
+	case -EHOSTUNREACH:
+		if (e->error == -EHOSTDOWN)
+			return;
+	case -EHOSTDOWN:
+		if (e->error == -ECONNREFUSED)
+			return;
+	case -ECONNREFUSED:
+		if (e->error == -ECONNRESET)
+			return;
+	case -ECONNRESET: /* Responded, but call expired. */
+		if (e->responded)
+			return;
+		e->error = error;
+		return;
+
+	case -ECONNABORTED:
+		e->responded = true;
+		e->error = afs_abort_to_error(abort_code);
+		return;
+	}
+}