Add link to LWN article on dcache.

Although a bit dated, it's still worth reading.

diff --git a/Filesystems.m4 b/Filesystems.m4
index 860fc6289ee50c25b894380079e0b77fe958df7d..0e573d3d44ba3cd11499dae6e357f5451503931e 100644 (file)
--- a/Filesystems.m4
+++ b/Filesystems.m4
@@ -1460,6 +1460,9 @@ SECTION(«Further Reading»)
 <ul>
        <li> <code>Documentation/filesystems/vfs.txt</code> of the Linux
        kernel source. </li>
+       <li> Jonathan Corbet: <a href="https://lwn.net/Articles/419811/">
+       Dcache scalability and RCU-walk</a>. An LWN articile which explains
+       the dcache in some more detail. </li>
        <li> Dominic Giampaolo: Practical File System Design </li>
        <li> Cormen </li>
        <li> Darrick Wong: XFS Filesystem Disk Structures </li>