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zram: add might_sleep to zcomp API

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Explicitly state that zcomp compress/decompress must be called from
non-atomic context.

Link: https://lkml.kernel.org/r/20250303022425.285971-20-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Kairui Song <ryncsn@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Yosry Ahmed <yosry.ahmed@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Sergey Senozhatsky
2025-03-03 11:03:28 +09:00
committed by Andrew Morton
parent a6d2193b3e
commit 2ad951865a
1 changed files with 2 additions and 0 deletions
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2
drivers/block/zram/zcomp.c
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@@ -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);
}