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SubjectRe: [RFC PATCH v3 6/7] btrfs: add EXTENT_FLAG_SWAPFILE
On Tue, Dec 09, 2014 at 05:45:47PM -0800, Omar Sandoval wrote:
> Extents mapping a swap file should remain pinned in memory in order to
> avoid doing allocations to look up an extent when we're already low on
> memory. Rather than overloading EXTENT_FLAG_PINNED, add a new flag
> specifically for this purpose.
> Signed-off-by: Omar Sandoval <>

Reviewed-by: David Sterba <>

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