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UPSTREAM: zram: add more compression algorithms

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Add "deflate", "lz4hc", "842" algorithms to the list of known
compression backends.  The real availability of those algorithms,
however, depends on the corresponding CONFIG_CRYPTO_FOO config options.

[sergey.senozhatsky@gmail.com: zram-add-more-compression-algorithms-v3]
  Link: http://lkml.kernel.org/r/20160604024902.11778-7-sergey.senozhatsky@gmail.com
Link: http://lkml.kernel.org/r/20160531122017.2878-8-sergey.senozhatsky@gmail.com
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit eb9f56d825)
Signed-off-by: Peter Kalauskas <peskal@google.com>
Bug: 112488418
Change-Id: Ie46c7676363ef13c559b45dab4968e2cc48a6cbe
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
This commit is contained in:
Sergey Senozhatsky
2016-07-26 15:22:56 -07:00
committed by Amit Pundir
parent 30a850bbf1
commit 4225fb587b
1 changed files with 9 additions and 0 deletions
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9
drivers/block/zram/zcomp.c
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@@ -22,6 +22,15 @@ static const char * const backends[] = {
"lzo",
#if IS_ENABLED(CONFIG_CRYPTO_LZ4)
"lz4",
#endif
#if IS_ENABLED(CONFIG_CRYPTO_DEFLATE)
"deflate",
#endif
#if IS_ENABLED(CONFIG_CRYPTO_LZ4HC)
"lz4hc",
#endif
#if IS_ENABLED(CONFIG_CRYPTO_842)
"842",
#endif
NULL
};