diff mbox series

[PATCHv4,17/17] zram: add might_sleep to zcomp API

Message ID 20250131090658.3386285-18-senozhatsky@chromium.org (mailing list archive)
State New
Headers show
Series zsmalloc/zram: there be preemption | expand

Commit Message

Sergey Senozhatsky Jan. 31, 2025, 9:06 a.m. UTC 
Explicitly state that zcomp compress/decompress must be
called from non-atomic context.

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
---
 drivers/block/zram/zcomp.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/block/zram/zcomp.c b/drivers/block/zram/zcomp.c
index 675f2a51ad5f..f4235735787b 100644
--- a/drivers/block/zram/zcomp.c
+++ b/drivers/block/zram/zcomp.c
@@ -185,6 +185,7 @@  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;
@@ -201,6 +202,7 @@  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);
 }