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drivers: convert shrinkers to new count/scan API
Convert the driver shrinkers to the new API. Most changes are compile tested only because I either don't have the hardware or it's staging stuff. FWIW, the md and android code is pretty good, but the rest of it makes me want to claw my eyes out. The amount of broken code I just encountered is mind boggling. I've added comments explaining what is broken, but I fear that some of the code would be best dealt with by being dragged behind the bike shed, burying in mud up to it's neck and then run over repeatedly with a blunt lawn mower. Special mention goes to the zcache/zcache2 drivers. They can't co-exist in the build at the same time, they are under different menu options in menuconfig, they only show up when you've got the right set of mm subsystem options configured and so even compile testing is an exercise in pulling teeth. And that doesn't even take into account the horrible, broken code... [[email protected]: fixes for i915, android lowmem, zcache, bcache] Signed-off-by: Dave Chinner <[email protected]> Signed-off-by: Glauber Costa <[email protected]> Acked-by: Mel Gorman <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Kent Overstreet <[email protected]> Cc: John Stultz <[email protected]> Cc: David Rientjes <[email protected]> Cc: Jerome Glisse <[email protected]> Cc: Thomas Hellstrom <[email protected]> Cc: "Theodore Ts'o" <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Al Viro <[email protected]> Cc: Artem Bityutskiy <[email protected]> Cc: Arve Hjønnevåg <[email protected]> Cc: Carlos Maiolino <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Chuck Lever <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: David Rientjes <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: Greg Thelen <[email protected]> Cc: J. Bruce Fields <[email protected]> Cc: Jan Kara <[email protected]> Cc: Jerome Glisse <[email protected]> Cc: John Stultz <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Cc: Kent Overstreet <[email protected]> Cc: Kirill A. Shutemov <[email protected]> Cc: Marcelo Tosatti <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Steven Whitehouse <[email protected]> Cc: Thomas Hellstrom <[email protected]> Cc: Trond Myklebust <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Al Viro <[email protected]>
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Dave Chinner
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Al Viro
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Sep 10, 2013
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