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path: root/drivers/scsi/scsi_common.c
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Diffstat (limited to 'drivers/scsi/scsi_common.c')
-rw-r--r--drivers/scsi/scsi_common.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_common.c b/drivers/scsi/scsi_common.c
index 6e50e81a8216..11bf6c275d4e 100644
--- a/drivers/scsi/scsi_common.c
+++ b/drivers/scsi/scsi_common.c
@@ -8,6 +8,7 @@
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/module.h>
+#include <uapi/linux/pr.h>
#include <asm/unaligned.h>
#include <scsi/scsi_common.h>
@@ -63,6 +64,27 @@ const char *scsi_device_type(unsigned type)
}
EXPORT_SYMBOL(scsi_device_type);
+enum scsi_pr_type block_pr_type_to_scsi(enum pr_type type)
+{
+ switch (type) {
+ case PR_WRITE_EXCLUSIVE:
+ return SCSI_PR_WRITE_EXCLUSIVE;
+ case PR_EXCLUSIVE_ACCESS:
+ return SCSI_PR_EXCLUSIVE_ACCESS;
+ case PR_WRITE_EXCLUSIVE_REG_ONLY:
+ return SCSI_PR_WRITE_EXCLUSIVE_REG_ONLY;
+ case PR_EXCLUSIVE_ACCESS_REG_ONLY:
+ return SCSI_PR_EXCLUSIVE_ACCESS_REG_ONLY;
+ case PR_WRITE_EXCLUSIVE_ALL_REGS:
+ return SCSI_PR_WRITE_EXCLUSIVE_ALL_REGS;
+ case PR_EXCLUSIVE_ACCESS_ALL_REGS:
+ return SCSI_PR_EXCLUSIVE_ACCESS_ALL_REGS;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(block_pr_type_to_scsi);
+
/**
* scsilun_to_int - convert a scsi_lun to an int
* @scsilun: struct scsi_lun to be converted.