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| author | Sebastian Ott <sebott@linux.ibm.com> | 2018-06-04 19:07:39 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-06-12 15:14:19 +0200 |
| commit | c5205f2ff2bec6acf398211aed66b3e6ac44eee6 (patch) | |
| tree | 8de7981d2baf17dce8452ea267092ab01383ab81 /drivers/s390/block/dasd_int.h | |
| parent | 5c618c0cf451f1d9746296b0d30c84af1bce3604 (diff) | |
| download | linux-c5205f2ff2bec6acf398211aed66b3e6ac44eee6.tar.gz | |
s390/dasd: move dasd_ccw_req to per request data
Let the block layer allocate per request data to store
struct dasd_ccw_req. We still need extra preallocated
memory for usage by ccw programs (which vary in length)
and for requests which don't originate from the block
layer.
Link: https://lkml.kernel.org/r/20180530074130.GA6927@infradead.org
Signed-off-by: Sebastian Ott <sebott@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/block/dasd_int.h')
| -rw-r--r-- | drivers/s390/block/dasd_int.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index 96709b1a7bf8d8..0844e5e2f566b7 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -184,6 +184,7 @@ struct dasd_ccw_req { struct irb irb; /* device status in case of an error */ struct dasd_ccw_req *refers; /* ERP-chain queueing. */ void *function; /* originating ERP action */ + void *mem_chunk; /* these are for statistics only */ unsigned long buildclk; /* TOD-clock of request generation */ @@ -716,7 +717,7 @@ extern struct kmem_cache *dasd_page_cache; struct dasd_ccw_req * dasd_kmalloc_request(int , int, int, struct dasd_device *); struct dasd_ccw_req * -dasd_smalloc_request(int , int, int, struct dasd_device *); +dasd_smalloc_request(int, int, int, struct dasd_device *, struct dasd_ccw_req *); void dasd_kfree_request(struct dasd_ccw_req *, struct dasd_device *); void dasd_sfree_request(struct dasd_ccw_req *, struct dasd_device *); void dasd_wakeup_cb(struct dasd_ccw_req *, void *); |