iomap: add a page_done callback

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This will be used by gfs2 to attach data to transactions for the journaled
data mode.  But the concept is generic enough that we might be able to
use it for other purposes like encryption/integrity post-processing in the
future.

Based on a patch from Andreas Gruenbacher.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

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Christoph Hellwig 2018-06-19 15:10:56 -07:00 • committed by Darrick J. Wong

parent 19e0c58f65

commit 63899c6f88

2 changed files with 12 additions and 0 deletions

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3

fs/iomap.c

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9

include/linux/iomap.h

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