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authorDave Chinner <dchinner@redhat.com>2011-07-18 03:40:18 +0000
committerAlex Elder <aelder@sgi.com>2011-07-20 18:37:46 -0500
commitaf3e40228fb2dbc18d94fbd5103f07344a720ae7 (patch)
treee33bac82ebcf5fccf7f3d25cb8dc9b764736fc06 /kernel
parent16b5902943c793e632cf8c9526619f59893bdc29 (diff)
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xfs: convert AIL cursors to use struct list_head
The list of active AIL cursors uses a roll-your-own linked list with special casing for the AIL push cursor. Simplify this code by replacing the list with standard struct list_head lists, and use a separate list_head to track the active cursors. This allows us to treat the AIL push cursor as a generic cursor rather than as a special case, further simplifying the code. Further, fix the duplicate push cursor initialisation that the special case handling was hiding, and clean up all the comments around the active cursor list handling. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
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