David Woodhouse e4fa3adabb Fix directory hardlinks from deleted directories
When a directory is deleted, we don't take too much care about killing off
all the dirents that belong to it — on the basis that on remount, the scan
will conclude that the directory is dead anyway.

This doesn't work though, when the deleted directory contained a child
directory which was moved *out*. In the early stages of the fs build
we can then end up with an apparent hard link, with the child directory
appearing both in its true location, and as a child of the original
directory which are this stage of the mount process we don't *yet* know
is defunct.

To resolve this, take out the early special-casing of the "directories
shall not have hard links" rule in jffs2_build_inode_pass1(), and let the
normal nlink processing happen for directories as well as other inodes.

Then later in the build process we can set ic->pino_nlink to the parent
inode#, as is required for directories during normal operaton, instead
of the nlink. And complain only *then* about hard links which are still
in evidence even after killing off all the unreachable paths.

Reported-by: Liu Song <liu.song11@zte.com.cn>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@vger.kernel.org
2018-07-16 07:22:13 +02:00
2018-06-28 15:02:12 +02:00
2018-01-25 08:45:26 +01:00
2013-05-27 14:47:20 +02:00
2018-07-06 10:06:02 +02:00
2013-06-18 13:38:31 +02:00
2012-10-09 19:26:51 +02:00
2013-09-19 13:16:06 +02:00
2013-05-27 14:47:20 +02:00
2013-05-27 14:47:20 +02:00
2018-04-11 11:49:03 +10:00
2018-05-14 15:22:52 -05:00

Real-Time Executive for Multiprocessing Systems (RTEMS)
-------------------------------------------------------

RTEMS, Real-Time Executive for Multiprocessor Systems, is a real-time executive
(kernel) which provides a high performance environment for embedded
applications with the following features:

 - standards based user interfaces
 - multitasking capabilities
 - homogeneous and heterogeneous multiprocessor systems
 - event-driven, priority-based, preemptive scheduling
 - optional rate monotonic scheduling
 - intertask communication and synchronization
 - priority inheritance
 - responsive interrupt management
 - dynamic memory allocation
 - high level of user configurability
 - open source with a friendly user license

Project git repositories are located at https://git.rtems.org/

 RTEMS Kernel: https  : https://git.rtems.org/rtems/
 RTEMS Source Builder : https://git.rtems.org/rtems-source-builder/
 RTEMS Tools          : https://git.rtems.org/rtems-tools/
 RTEMS Documentation  : https://git.rtems.org/rtems-docs/
 RTEMS FreeBSD        : https://git.rtems.org/rtems-libbsd/

Online documentation is available at https://docs.rtems.org/

 RTEMS User Manual : https://docs.rtems.org/branches/master/user/index.html
 RTEMS RSB Manual  : https://docs.rtems.org/branches/master/rsb/index.html
 RTEMS Classic API : https://docs.rtems.org/branches/master/c-user/index.html
 RTEMS POSIX API   : https://docs.rtems.org/branches/master/posix-users/index.html

RTEMS Doxygen for CPUKit : https://docs.rtems.org/doxygen/branches/master/

RTEMS POSIX 1003.1 Compliance Guide :
 https://docs.rtems.org/branches/master/posix-compliance/index.html

 - Details the standards base functionality and profiles RTEMS supportsXo

RTEMS Developers Wiki : http://devel.rtems.org

 - Bug reporting, community knowledge and tutorials.

RTEMS Mailing Lists : https://lists.rtems.org/mailman/listinfo

 - The RTEMS Project maintains mailing lists which are used for most
   discussions:

   * For general-purpose questions related to using RTEMS, use the rtems-users
     ml: https://lists.rtems.org/mailman/listinfo/users

   * For questions and discussion related to development of RTEMS, use the
     rtems-devel ml: https://lists.rtems.org/mailman/listinfo/devel

The version number for this software is indicated in the VERSION file.
Description
RTEMS is a ​real-time executive in use by embedded systems applications around the world and beyond
Readme 126 MiB
Languages
C 93.9%
Assembly 3.4%
Ada 1.4%
Python 0.3%
HTML 0.3%
Other 0.4%