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authorAndreas Gruenbacher <agruenba@redhat.com>2018-06-19 15:10:56 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2018-06-19 15:10:56 -0700
commit19e0c58f6552638c86395f0717210326fdf14fd2 (patch)
tree9ab550efae0c4ddac55cdf3fffd4ccf6c6c0dc7a /include/linux/iomap.h
parentebf00be37de35788cad72f4f20b4a39e30c0be4a (diff)
iomap: generic inline data handling
Add generic inline data handling by adding a pointer to the inline data region to struct iomap. When handling a buffered IOMAP_INLINE write, iomap_write_begin will copy the current inline data from the inline data region into the page cache, and iomap_write_end will copy the changes in the page cache back to the inline data region. This doesn't cover inline data reads and direct I/O yet because so far, we have no users. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> [hch: small cleanups to better fit in with other iomap work] 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>
Diffstat (limited to 'include/linux/iomap.h')
-rw-r--r--include/linux/iomap.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index a044a824da85..10d6cff7f69a 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -55,6 +55,7 @@ struct iomap {
u16 flags; /* flags for mapping */
struct block_device *bdev; /* block device for I/O */
struct dax_device *dax_dev; /* dax_dev for dax operations */
+ void *inline_data;
};
/*