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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-09-22 14:31:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-09-22 14:31:38 -0700 |
| commit | c37b7189228cf972b5f899e0fedd89a83009ae25 (patch) | |
| tree | e209ed2a70846b9f0721112ffdf433b53975efb9 /drivers/s390 | |
| parent | eff48ddeab782e35e58ccc8853f7386bbae9dec4 (diff) | |
| parent | 4a2dd2c798522859811dd520a059f982278be9d9 (diff) | |
| download | linux-c37b7189228cf972b5f899e0fedd89a83009ae25.tar.bz2 | |
Merge tag 'block-5.9-2020-09-22' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few NVMe fixes, and a dasd write zero fix"
* tag 'block-5.9-2020-09-22' of git://git.kernel.dk/linux-block:
nvmet: get transport reference for passthru ctrl
nvme-core: get/put ctrl and transport module in nvme_dev_open/release()
nvme-tcp: fix kconfig dependency warning when !CRYPTO
nvme-pci: disable the write zeros command for Intel 600P/P3100
s390/dasd: Fix zero write for FBA devices
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/block/dasd_fba.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index cbb770824226..1a44e321b54e 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -40,6 +40,7 @@ MODULE_LICENSE("GPL"); static struct dasd_discipline dasd_fba_discipline; +static void *dasd_fba_zero_page; struct dasd_fba_private { struct dasd_fba_characteristics rdc_data; @@ -270,7 +271,7 @@ static void ccw_write_zero(struct ccw1 *ccw, int count) ccw->cmd_code = DASD_FBA_CCW_WRITE; ccw->flags |= CCW_FLAG_SLI; ccw->count = count; - ccw->cda = (__u32) (addr_t) page_to_phys(ZERO_PAGE(0)); + ccw->cda = (__u32) (addr_t) dasd_fba_zero_page; } /* @@ -830,6 +831,11 @@ dasd_fba_init(void) int ret; ASCEBC(dasd_fba_discipline.ebcname, 4); + + dasd_fba_zero_page = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!dasd_fba_zero_page) + return -ENOMEM; + ret = ccw_driver_register(&dasd_fba_driver); if (!ret) wait_for_device_probe(); @@ -841,6 +847,7 @@ static void __exit dasd_fba_cleanup(void) { ccw_driver_unregister(&dasd_fba_driver); + free_page((unsigned long)dasd_fba_zero_page); } module_init(dasd_fba_init); |