diff options
Diffstat (limited to 'drivers/block/zram/backend_deflate.c')
| -rw-r--r-- | drivers/block/zram/backend_deflate.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/block/zram/backend_deflate.c b/drivers/block/zram/backend_deflate.c index 0f7f252c12f4..b75016e0e654 100644 --- a/drivers/block/zram/backend_deflate.c +++ b/drivers/block/zram/backend_deflate.c @@ -8,7 +8,7 @@ #include "backend_deflate.h" /* Use the same value as crypto API */ -#define DEFLATE_DEF_WINBITS 11 +#define DEFLATE_DEF_WINBITS (-11) #define DEFLATE_DEF_MEMLEVEL MAX_MEM_LEVEL struct deflate_ctx { @@ -22,8 +22,10 @@ static void deflate_release_params(struct zcomp_params *params) static int deflate_setup_params(struct zcomp_params *params) { - if (params->level == ZCOMP_PARAM_NO_LEVEL) + if (params->level == ZCOMP_PARAM_NOT_SET) params->level = Z_DEFAULT_COMPRESSION; + if (params->deflate.winbits == ZCOMP_PARAM_NOT_SET) + params->deflate.winbits = DEFLATE_DEF_WINBITS; return 0; } @@ -57,13 +59,13 @@ static int deflate_create(struct zcomp_params *params, struct zcomp_ctx *ctx) return -ENOMEM; ctx->context = zctx; - sz = zlib_deflate_workspacesize(-DEFLATE_DEF_WINBITS, MAX_MEM_LEVEL); + sz = zlib_deflate_workspacesize(params->deflate.winbits, MAX_MEM_LEVEL); zctx->cctx.workspace = vzalloc(sz); if (!zctx->cctx.workspace) goto error; ret = zlib_deflateInit2(&zctx->cctx, params->level, Z_DEFLATED, - -DEFLATE_DEF_WINBITS, DEFLATE_DEF_MEMLEVEL, + params->deflate.winbits, DEFLATE_DEF_MEMLEVEL, Z_DEFAULT_STRATEGY); if (ret != Z_OK) goto error; @@ -73,7 +75,7 @@ static int deflate_create(struct zcomp_params *params, struct zcomp_ctx *ctx) if (!zctx->dctx.workspace) goto error; - ret = zlib_inflateInit2(&zctx->dctx, -DEFLATE_DEF_WINBITS); + ret = zlib_inflateInit2(&zctx->dctx, params->deflate.winbits); if (ret != Z_OK) goto error; |