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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-01 09:06:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-01 09:06:53 -0700 |
| commit | 9ac211426fb6747c92d570647e2ce889e33cbffd (patch) | |
| tree | c9d021ff260415fa63071b37ae01f01e81334bb5 /Documentation/filesystems | |
| parent | Merge tag 'tpmdd-next-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd (diff) | |
| parent | fs: remove leftover comments from mandatory locking removal (diff) | |
| download | linux-dev-9ac211426fb6747c92d570647e2ce889e33cbffd.tar.xz linux-dev-9ac211426fb6747c92d570647e2ce889e33cbffd.zip | |
Merge tag 'locks-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull file locking updates from Jeff Layton:
"Most of this is just follow-on cleanup work of documentation and
comments from the mandatory locking removal in v5.15.
The only real functional change is that LOCK_MAND flock() support is
also being removed, as it has basically been non-functional since the
v2.5 days"
* tag 'locks-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
fs: remove leftover comments from mandatory locking removal
locks: remove changelog comments
docs: fs: locks.rst: update comment about mandatory file locking
Documentation: remove reference to now removed mandatory-locking doc
locks: remove LOCK_MAND flock lock support
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/filesystems/locks.rst | 17 |
2 files changed, 5 insertions, 13 deletions
diff --git a/Documentation/filesystems/index.rst b/Documentation/filesystems/index.rst index c0ad233963ae..bee63d42e5ec 100644 --- a/Documentation/filesystems/index.rst +++ b/Documentation/filesystems/index.rst @@ -29,7 +29,6 @@ algorithms work. fiemap files locks - mandatory-locking mount_api quota seq_file diff --git a/Documentation/filesystems/locks.rst b/Documentation/filesystems/locks.rst index c5ae858b1aac..26429317dbbc 100644 --- a/Documentation/filesystems/locks.rst +++ b/Documentation/filesystems/locks.rst @@ -57,16 +57,9 @@ fcntl(), with all the problems that implies. 1.3 Mandatory Locking As A Mount Option --------------------------------------- -Mandatory locking, as described in -'Documentation/filesystems/mandatory-locking.rst' was prior to this release a -general configuration option that was valid for all mounted filesystems. This -had a number of inherent dangers, not the least of which was the ability to -freeze an NFS server by asking it to read a file for which a mandatory lock -existed. - -From this release of the kernel, mandatory locking can be turned on and off -on a per-filesystem basis, using the mount options 'mand' and 'nomand'. -The default is to disallow mandatory locking. The intention is that -mandatory locking only be enabled on a local filesystem as the specific need -arises. +Mandatory locking was prior to this release a general configuration option +that was valid for all mounted filesystems. This had a number of inherent +dangers, not the least of which was the ability to freeze an NFS server by +asking it to read a file for which a mandatory lock existed. +Such option was dropped in Kernel v5.14. |