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start_removing() is similar to start_creating() but will only return a positive dentry with the expectation that it will be removed. This is used by nfsd, cachefiles, and overlayfs. They are changed to also use end_removing() to terminate the action begun by start_removing(). This is a simple alias for end_dirop(). Apart from changes to the error paths, as we no longer need to unlock on a lookup error, an effect on callers is that they don't need to test if the found dentry is positive or negative - they can be sure it is positive. Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: NeilBrown <neil@brown.name> Link: https://patch.msgid.link/20251113002050.676694-6-neilb@ownmail.net Tested-by: syzbot@syzkaller.appspotmail.com Signed-off-by: Christian Brauner <brauner@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.