Merge to Fedora kernel-2.6.7-1.492

[linux-2.6.git] / Documentation / filesystems / proc.txt

diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 7dd9fc9..faf3b7a 100644 (file)
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -201,7 +201,7 @@ Table 1-3: Kernel info in /proc
  devices     Available devices (block and character)           
  dma         Used DMS channels                                 
  filesystems Supported filesystems                             
- driver             Various drivers grouped here, currently rtc        (2.4)
+ driver             Various drivers grouped here, currently rtc (2.4)
  execdomains Execdomains, related to security                  (2.4)
  fb         Frame Buffer devices                               (2.4)
  fs         File system parameters, currently nfs/exports      (2.4)
@@ -1115,6 +1115,18 @@ program to load modules on demand.
 The files  in  this directory can be used to tune the operation of the virtual
 memory (VM)  subsystem  of  the  Linux  kernel.
 
+vfs_cache_pressure
+------------------
+
+Controls the tendency of the kernel to reclaim the memory which is used for
+caching of directory and inode objects.
+
+At the default value of vfs_cache_pressure=100 the kernel will attempt to
+reclaim dentries and inodes at a "fair" rate with respect to pagecache and
+swapcache reclaim.  Decreasing vfs_cache_pressure causes the kernel to prefer
+to retain dentry and inode caches.  Increasing vfs_cache_pressure beyond 100
+causes the kernel to prefer to reclaim dentries and inodes.
+
 dirty_background_ratio
 ----------------------
 
@@ -1632,7 +1644,8 @@ flush
 
 Writing to this file results in a flush of the routing cache.
 
-gc_elastic, gc_interval, gc_min_interval, gc_tresh, gc_timeout
+gc_elasticity, gc_interval, gc_min_interval, gc_tresh, gc_timeout,
+gc_thresh, gc_thresh1, gc_thresh2, gc_thresh3
 --------------------------------------------------------------
 
 Values to  control  the  frequency  and  behavior  of  the  garbage collection