[PATCH] Fix error code when read()ing directories in /proc

[Matt Kraai <kraai@alumni.carnegiemellon.edu>]

Howdy,

Calling read() on some directories in /proc returns EINVAL, rather
than EISDIR.  The other filesystems return EISDIR and the manpage says
this is what should be returned in this situation.  The appended patch
applies against 2.4.0-test11.

Matt

diff -urN linux-vanilla/fs/proc/generic.c linux/fs/proc/generic.c
--- linux-vanilla/fs/proc/generic.c	Fri Nov 17 16:51:47 2000
+++ linux/fs/proc/generic.c	Thu Nov 23 08:00:41 2000
@@ -336,6 +336,7 @@
  * the /proc directory.
  */
 static struct file_operations proc_dir_operations = {
+	read:			generic_read_dir,
 	readdir:		proc_readdir,
 };
 
diff -urN linux-vanilla/fs/proc/root.c linux/fs/proc/root.c
--- linux-vanilla/fs/proc/root.c	Fri Nov 17 16:51:47 2000
+++ linux/fs/proc/root.c	Thu Nov 23 08:00:27 2000
@@ -82,6 +82,7 @@
  * directory handling functions for that..
  */
 static struct file_operations proc_root_operations = {
+	read:		 generic_read_dir,
 	readdir:	 proc_root_readdir,
 };
 
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