zram: propagate read_from_bdev_async() errors

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When read_from_bdev_async() fails to chain bio, for instance fails to
allocate request or bio, we need to propagate the error condition so that
upper layer is aware of it.  zram already does that by setting
BLK_STS_IOERR ->bi_status, but only for sync reads.  Change async read
path to return its error status so that async errors are also handled.

Link: https://lkml.kernel.org/r/20260316015354.114465-1-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Suggested-by: Brian Geffon <bgeffon@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Richard Chang <richardycc@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Sergey Senozhatsky 2026-03-16 10:53:32 +09:00 • committed by Andrew Morton

parent f0f6f78714

commit bf989ade27

1 changed files with 8 additions and 7 deletions

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drivers/block/zram/zram_drv.c

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