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ae3364e521
Currently when we turn the fs into an error state, typically after a transaction abort, we don't store the error anywhere, we just set a bit (BTRFS_FS_STATE_ERROR) at struct btrfs_fs_info::fs_state to signal the error state. There are cases where it would be useful to have access to the specific error in order to provide a more meaningful error to users/applications. This change adds a member to struct btrfs_fs_info to store the error and removes the BTRFS_FS_STATE_ERROR bit. When there's no error, the new member (fs_error) has a value of 0, otherwise its value is a negative errno value. Followup changes will make use of this new member. Signed-off-by: Filipe Manana <fdmanana@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 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.