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eeb808422f
When converting bits for an extent range, if we find an extent state with its start offset greater than current start offset, we insert a new extent state to cover the gap, with its end offset computed and stored in the @this_end local variable, and after the insertion we update the current start offset to @this_end + 1. However if the insert_state() call resulted in an extent state merge then the end offset of the merged extent may be greater than @this_end and if that's the case, since we jump to the 'search_again' label, we'll do a full tree search that will leave us in the same extent state - this is harmless but wastes time by doing a pointless tree search and extent state processing. So improve on this by updating the current start offset to the end offset of the inserted state plus 1. This also removes the use of the @this_end variable and directly set the value in the prealloc extent state to avoid any confusion and misuse in the future. Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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.