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(parent: 65e4f77) | patch
s390/qdio: eliminate queue's last_move cursor
authorJulian Wiedmann <jwi@linux.ibm.com>
Thu, 28 Mar 2019 09:45:11 +0000 (10:45 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 10 Apr 2019 15:47:26 +0000 (17:47 +0200)
commitdccbbaff174df174bb30c21e05d7b732d013ea1a
tree92c7e24a229126621297891496de1101be1b5eddtree | snapshot
parent65e4f776385ac5cab021ad8d992e851375305906commit | diff
s390/qdio: eliminate queue's last_move cursor

This cursor is used for debugging only. But since
commit "s390/qdio: pass up count of ready-to-process SBALs" it effectively
duplicates the first_to_check cursor, diverging for just a short moment
when get_*_buffer_frontier() updates q->first_to_check.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/qdio.h diff | blob | blame | history
drivers/s390/cio/qdio_debug.c diff | blob | blame | history
drivers/s390/cio/qdio_main.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)