mainlining shenanigans
1bbc55131e
First of all, calling pid_revalidate() in the end of <pid>/* lookups is *not* about closing any kind of races; that used to be true once upon a time, but these days those comments are actively misleading. Especially since pid_revalidate() doesn't even do d_drop() on failure anymore. It doesn't matter, anyway, since once pid_revalidate() starts returning false, ->d_delete() of those dentries starts saying "don't keep"; they won't get stuck in dcache any longer than they are pinned. These calls cannot be just removed, though - the side effect of pid_revalidate() (updating i_uid/i_gid/etc.) is what we are calling it for here. Let's separate the "update ownership" into a new helper (pid_update_inode()) and use it, both in lookups and in pid_revalidate() itself. The comments in pid_revalidate() are also out of date - they refer to the time when pid_revalidate() used to call d_drop() directly... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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 Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
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.