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40a71b53d5
jbd2 journal handling code doesn't want jbd2_might_wait_for_commit() to be placed between start_this_handle() and stop_this_handle(). So it marks the region with rwsem_acquire_read() and rwsem_release(). However, the annotation is too strong for that purpose. We don't have to use more than try lock annotation for that. rwsem_acquire_read() implies: 1. might be a waiter on contention of the lock. 2. enter to the critical section of the lock. All we need in here is to act 2, not 1. So trylock version of annotation is sufficient for that purpose. Now that dept partially relies on lockdep annotaions, dept interpets rwsem_acquire_read() as a potential wait and might report a deadlock by the wait. Replace it with trylock version of annotation. Signed-off-by: Byungchul Park <byungchul@sk.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: stable@kernel.org Message-ID: <20251024073940.1063-1-byungchul@sk.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> |
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| 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 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.