Documentation: update stale definition of file-nr in fs.txt
PATCH 1/1 Documentation: update stale definition of file-nr in fs.txt
commit 760df9 merged /proc/sys/fs documentation in Documentation/sysctl/ fs.txt and Documentation/filesystem/proc.txt, but stale file-nr definition is remained. This patch add back the right fs-nr definition for 2.6 kernel.
Signed-off-by Xiaotian Feng<[email protected]>
--- Documentation/sysctl/fs.txt | 17 ++++++++++------- 1 files changed, 10 insertions(+), 7 deletions(-)
Documentation/sysctl/fs.txt +10 -7
@@ -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:
Signature · 1 line
1.6.2.5