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authorRui Salvaterra <rsalvaterra@gmail.com>2020-12-15 06:14:35 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 23:13:47 +0300
commit3d711a382735d2c34d3ba2075a5aa83a894f4a57 (patch)
tree89c453f287b53fd476d2df1a5292ace0e154d6eb /drivers/block/zram/zram_drv.c
parent194e28da1a0279ef6a106a5b621fd79c410432ef (diff)
downloadlinux-3d711a382735d2c34d3ba2075a5aa83a894f4a57.tar.xz
zram: break the strict dependency from lzo
From the beginning, the zram block device always enabled CRYPTO_LZO, since lzo-rle is hardcoded as the fallback compression algorithm. As a consequence, on systems where another compression algorithm is chosen (e.g. CRYPTO_ZSTD), the lzo kernel module becomes unused, while still having to be built/loaded. This patch removes the hardcoded lzo-rle dependency and allows the user to select the default compression algorithm for zram at build time. The previous behaviour is kept, as the default algorithm is still lzo-rle. Link: https://lkml.kernel.org/r/20201207121245.50529-1-rsalvaterra@gmail.com Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com> Suggested-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Suggested-by: Minchan Kim <minchan@kernel.org> Acked-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/block/zram/zram_drv.c')
-rw-r--r--drivers/block/zram/zram_drv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 9481fa9eedd0..66a33e418940 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -42,7 +42,7 @@ static DEFINE_IDR(zram_index_idr);
static DEFINE_MUTEX(zram_index_mutex);
static int zram_major;
-static const char *default_compressor = "lzo-rle";
+static const char *default_compressor = CONFIG_ZRAM_DEF_COMP;
/* Module params (documentation at end) */
static unsigned int num_devices = 1;