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bd04b9192e
When unlinking a file the kclient will send a unlink request to MDS by holding the dentry reference, and then the MDS will return 2 replies, which are unsafe reply and a deferred safe reply. After the unsafe reply received the kernel will return and succeed the unlink request to user space apps. Only when the safe reply received the dentry's reference will be released. Or the dentry will only be unhashed from dcache. But when the open_by_handle_at() begins to open the unlinked files it will succeed. The inode->i_count couldn't be used to check whether the inode is opened or not. Link: https://tracker.ceph.com/issues/56524 Signed-off-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Luís Henriques <lhenriques@suse.de> Tested-by: Luís Henriques <lhenriques@suse.de> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| 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.
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.