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authorChristoph Hellwig <hch@lst.de>2024-04-09 17:37:31 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2024-04-12 04:37:48 +0300
commit6248d7f7714f018f2c02f356582784e74596f8e8 (patch)
tree3ed59a406d61d664e516b9709ce3f86aeb4d5b49 /include/scsi
parent7eaae991c30d46a4ea45aa00f50eba939d7f951b (diff)
downloadlinux-6248d7f7714f018f2c02f356582784e74596f8e8.tar.xz
scsi: core: Add a no_highmem flag to struct Scsi_Host
While we really should be killing the block layer bounce buffering ASAP, I even more urgently need to stop the drivers to fiddle with the limits from ->slave_configure. Add a no_highmem flag to the Scsi_Host to centralize this setting and switch the remaining four drivers that use block layer bounce buffering to it. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20240409143748.980206-7-hch@lst.de Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/scsi')
-rw-r--r--include/scsi/scsi_host.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index b259d42a1e1a..6d77c48e8311 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -665,6 +665,8 @@ struct Scsi_Host {
/* The transport requires the LUN bits NOT to be stored in CDB[1] */
unsigned no_scsi2_lun_in_cdb:1;
+ unsigned no_highmem:1;
+
/*
* Optional work queue to be utilized by the transport
*/