Commit a75c6589 authored by Stephen Kitt's avatar Stephen Kitt Committed by Jonathan Corbet
Browse files

docs: sysctl/fs: remove references to inode-max 



inode-max was removed in 2.3.20pre1, remove references to it in the
sysctl documentation.

Signed-off-by: default avatarStephen Kitt <steve@sk2.org>
Link: https://lore.kernel.org/r/20220930102937.135841-2-steve@sk2.org


Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 554d4389

Documentation/admin-guide/sysctl/fs.rst

+4 −12
Original line number Original line Diff line number Diff line
@@ -33,7 +33,6 @@ Currently, these files are in /proc/sys/fs: 
- dquot-nr

- dquot-nr

- file-max

- file-max

- file-nr

- file-nr

- inode-max

- inode-nr

- inode-nr

- inode-state

- inode-state

- nr_open

- nr_open
@@ -136,18 +135,12 @@ enough for most machines. Actual limit depends on RLIMIT_NOFILE 
resource limit.

resource limit.









inode-max, inode-nr & inode-state

inode-nr & inode-state

---------------------------------

----------------------





As with file handles, the kernel allocates the inode structures

As with file handles, the kernel allocates the inode structures

dynamically, but can't free them yet.

dynamically, but can't free them yet.





The value in inode-max denotes the maximum number of inode

handlers. This value should be 3-4 times larger than the value

in file-max, since stdin, stdout and network sockets also

need an inode struct to handle them. When you regularly run

out of inodes, you need to increase this value.



The file inode-nr contains the first two items from

The file inode-nr contains the first two items from

inode-state, so we'll skip to that file...

inode-state, so we'll skip to that file...
@@ -156,11 +149,10 @@ The actual numbers are, in order of appearance, nr_inodes, 
nr_free_inodes and preshrink.

nr_free_inodes and preshrink.





Nr_inodes stands for the number of inodes the system has

Nr_inodes stands for the number of inodes the system has

allocated, this can be slightly more than inode-max because

allocated.

Linux allocates them one pageful at a time.





Nr_free_inodes represents the number of free inodes (?) and

Nr_free_inodes represents the number of free inodes (?) and

preshrink is nonzero when the nr_inodes > inode-max and the

preshrink is nonzero when the

system needs to prune the inode list instead of allocating

system needs to prune the inode list instead of allocating

more.

more.