Christoph Böhmwalder 4b9c2edaf7 drbd: swap bvec_set_page len and offset ... bvec_set_page has the following signature: static inline void bvec_set_page(struct bio_vec *bv, struct page *page, unsigned int len, unsigned int offset) However, the usage in DRBD swaps the len and offset parameters. This leads to a bvec with length=0 instead of the intended length=4096, which causes sock_sendmsg to return -EIO. This leaves DRBD unable to transmit any pages and thus completely broken. Swapping the parameters fixes the regression. Fixes: eeac7405c7 ("drbd: Use sendmsg(MSG_SPLICE_PAGES) rather than sendpage()") Reported-by: Serguei Ivantsov <manowar@gsc-game.com> Link: https://lore.kernel.org/regressions/CAKH+VT3YLmAn0Y8=q37UTDShqxDLsqPcQ4hBMzY7HPn7zNx+RQ@mail.gmail.com/ Cc: stable@vger.kernel.org Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> Link: https://lore.kernel.org/r/20230906133034.948817-1-christoph.boehmwalder@linbit.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2023-09-06 07:33:03 -06:00
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drbd_actlog.c
drbd_bitmap.c
drbd_buildtag.c
drbd_debugfs.c
drbd_debugfs.h
drbd_int.h
drbd_interval.c
drbd_interval.h
drbd_main.c	drbd: swap bvec_set_page len and offset	2023-09-06 07:33:03 -06:00
drbd_nl.c
drbd_nla.c
drbd_nla.h
drbd_polymorph_printk.h
drbd_proc.c
drbd_protocol.h
drbd_receiver.c
drbd_req.c
drbd_req.h
drbd_state.c
drbd_state.h
drbd_state_change.h
drbd_strings.c
drbd_strings.h
drbd_vli.h
drbd_worker.c
Kconfig
Makefile