From e670afbac865d864b4d8df547d683246264bc6e7 Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Wed, 8 May 2019 19:08:28 -0700
Subject: [PATCH] ircd::fs: Return zero rather than propagating exception from
 write_life getter.

---
 include/ircd/fs/fd.h |  2 +-
 ircd/fs.cc           | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/ircd/fs/fd.h b/include/ircd/fs/fd.h
index 7df8e63f6..2a3fb8be8 100644
--- a/include/ircd/fs/fd.h
+++ b/include/ircd/fs/fd.h
@@ -19,7 +19,7 @@ namespace ircd::fs
 	size_t block_size(const fd &);
 	ulong fstype(const fd &);
 	ulong device(const fd &);
-	uint64_t write_life(const fd &);
+	uint64_t write_life(const fd &) noexcept;
 	void write_life(const fd &, const uint64_t &);
 }
 
diff --git a/ircd/fs.cc b/ircd/fs.cc
index 6bf93a047..b21f53770 100644
--- a/ircd/fs.cc
+++ b/ircd/fs.cc
@@ -1551,11 +1551,23 @@ ircd::fs::write_life(const fd &fd,
 #if defined(HAVE_FCNTL_H) && defined(F_GET_FILE_RW_HINT)
 uint64_t
 ircd::fs::write_life(const fd &fd)
+noexcept try
 {
 	uint64_t ret;
 	syscall(::fcntl, int(fd), F_GET_FILE_RW_HINT, &ret);
 	return ret;
 }
+catch(const std::system_error &e)
+{
+	log::derror
+	{
+		log, "fcntl(F_GET_FILE_RW_HINT) fd:%d :%s",
+		int(fd),
+		e.what()
+	};
+
+	return 0;
+}
 #else
 #warning "F_GET_FILE_RW_HINT not supported on platform."
 uint64_t