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SubjectRe: [PATCH 0/4] I/O Error Handling for ReiserFS v3
These have received design approval from zam (and thus me), but zam, did 
they receive stress testing by Elena under your guidance?

Hans

Jeffrey Mahoney wrote:

>Hey all -
>
>One of the most common complaints I've heard about ReiserFS is how
>graceless it is in handling critical I/O errors.
>
>ext[23] can handle I/O errors anywhere, with the results being up to the
>system admin to determine: continue, go read only, or panic.
>
>ReiserFS doesn't offer the admin any such choice, instead panicking on
>any I/O error in the journal.
>
>The available options are read only or panic, since ReiserFS does not
>currently support operations without the journal.
>
>In the four messages that follow, you'll find:
>* reiserfs-cleanup-buffer-heads.diff
> - Cleans up handling of buffer head bitfields - uses
> the kernel supplied FNS_BUFFER macros instead.
>* reiserfs-cleanup-sb-journal.diff
> - Cleans up accessing of the journal structure, prefering
> to create a temporary variable in functions that access
> the journal structure non-trivially. Should make 0 difference
> at compile time.
>* reiserfs-io-error-handling.diff
> - Allows ReiserFS to gracefully handle I/O errors in critical
> code paths. The admin has the option to go read-only or panic.
> Since ReiserFS has no option to ignore the use of the journal,
> the "continue" method is not enabled.
>* reiserfs-write-lock.diff
> - Fixes two missing reiserfs_write_unlock() calls on error paths
> that are unrelated to reiserfs-io-error-handling.diff
>
>These patches have seen a lot of testing in the SuSE Linux Enterprise
>Server 9 kernel, and are considered ready for mainline.
>
>They've received approval[1] from the ReiserFS maintainers also.
>
>Andrew - Apologies for the previous format; Please apply.
>
>Thanks.
>
>-Jeff
>
>[1] http://marc.theaimsgroup.com/?l=reiserfs&m=109587254714180
>
>--
>Jeff Mahoney
>SuSE Labs
>
>

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