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authorXiaotian Feng <dfeng@redhat.com>2009-09-23 15:56:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-24 07:20:57 -0700
commitbcadbbd4c896c80c263c35ce94b763e5ff58cecd (patch)
tree9163d1f30b65d16552a955822d99198ff901b7f9
parent16c01b20ae0572d5a1fe8059f1b4c09f79b73cbf (diff)
downloadlinux-bcache-bcadbbd4c896c80c263c35ce94b763e5ff58cecd.tar.zst
Documentation: update stale definition of file-nr in fs.txt
In "documentation: update Documentation/filesystem/proc.txt and Documentation/sysctls" (commit 760df93ec) we merged /proc/sys/fs documentation in Documentation/sysctl/fs.txt and Documentation/filesystem/proc.txt, but stale file-nr definition remained. This patch adds back the right fs-nr definition for 2.6 kernel. Signed-off-by: Xiaotian Feng<dfeng@redhat.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--Documentation/sysctl/fs.txt17
1 files changed, 10 insertions, 7 deletions
diff --git a/Documentation/sysctl/fs.txt b/Documentation/sysctl/fs.txt
index 1458448436cc..62682500878a 100644
--- a/Documentation/sysctl/fs.txt
+++ b/Documentation/sysctl/fs.txt
@@ -96,13 +96,16 @@ handles that the Linux kernel will allocate. When you get lots
of error messages about running out of file handles, you might
want to increase this limit.
-The three values in file-nr denote the number of allocated
-file handles, the number of unused file handles and the maximum
-number of file handles. When the allocated file handles come
-close to the maximum, but the number of unused file handles is
-significantly greater than 0, you've encountered a peak in your
-usage of file handles and you don't need to increase the maximum.
-
+Historically, the three values in file-nr denoted the number of
+allocated file handles, the number of allocated but unused file
+handles, and the maximum number of file handles. Linux 2.6 always
+reports 0 as the number of free file handles -- this is not an
+error, it just means that the number of allocated file handles
+exactly matches the number of used file handles.
+
+Attempts to allocate more file descriptors than file-max are
+reported with printk, look for "VFS: file-max limit <number>
+reached".
==============================================================
nr_open: