xen/blkback: Use kzalloc's, and GFP_KERNEL for data structures.

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The patch titled:"xen/blkback: Use 'vzalloc' for page arrays and pre-allocate pages."
allocates the structures and its member variables using the 'vzalloc'.

Daniel Stodden pointed out that vzalloc is good when we use
big number of pages - while these are at the max two pages.

We can do this using kzalloc. Also the GFP_HIGHMEM does not
work properly with Xen, so take that out.

We will have to revisit this when a "get_empty_pages_and_pagevec"
type API shows up to leverage that.

BugLink: http://mid.gmane.org/1299898639.11681.227.camel@agari.van.xensource.com

CC: Daniel Stodden <daniel.stodden@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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This commit is contained in:

Konrad Rzeszutek Wilk 2011-03-14 12:41:26 -04:00

parent 5dc03639cc

commit a742b02c75

1 changed files with 9 additions and 8 deletions

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drivers/xen/blkback/blkback.c

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