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93b0c58ed0
If we tried to repair something but the repair failed with -EDEADLOCK, that means that the repair function couldn't grab some resource it needed and wants us to try again. If we try again (with TRY_HARDER) but still can't get all the resources we need, the repair fails and errors remain on the filesystem. Right now, repair returns the -EDEADLOCK to the caller as -EFSCORRUPTED, which results in XFS_SCRUB_OFLAG_CORRUPT being passed out to userspace. This is not correct because repair has not determined that anything is corrupt. If the repair had been invoked on an object that could be optimized but wasn't corrupt (OFLAG_PREEN), the inability to grab resources will be reported to userspace as corrupt metadata, and users will be unnecessarily alarmed that their suboptimal metadata turned into a corruption. Fix this by returning zero so that the results of the actual scrub will be copied back out to userspace. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.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 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.