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-rw-r--r--fs/afs/misc.c52
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;
+ }
+}