From 2470557e8f90468c7daedb58d69ef49386d87c4c Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky Date: Sat, 22 Feb 2025 07:25:48 +0900 Subject: [PATCH] zram: add might_sleep to zcomp API Explicitly state that zcomp compress/decompress must be called from non-atomic context. Link: https://lkml.kernel.org/r/20250221222958.2225035-18-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky Cc: Minchan Kim Cc: Sebastian Andrzej Siewior Cc: Yosry Ahmed Signed-off-by: Andrew Morton --- drivers/block/zram/zcomp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/block/zram/zcomp.c b/drivers/block/zram/zcomp.c index a1d627054bb1..d26a58c67e95 100644 --- a/drivers/block/zram/zcomp.c +++ b/drivers/block/zram/zcomp.c @@ -146,6 +146,7 @@ int zcomp_compress(struct zcomp *comp, struct zcomp_strm *zstrm, }; int ret; + might_sleep(); ret = comp->ops->compress(comp->params, &zstrm->ctx, &req); if (!ret) *dst_len = req.dst_len; @@ -162,6 +163,7 @@ int zcomp_decompress(struct zcomp *comp, struct zcomp_strm *zstrm, .dst_len = PAGE_SIZE, }; + might_sleep(); return comp->ops->decompress(comp->params, &zstrm->ctx, &req); } -- 2.50.1