Add DKIOCTRIM for TRIM support.

See dechamps/zfs@cc6cd40ad71e1e611591929ad08184516357eaf5 for details.

This harmless addition was merged to simplify testing the ZFS TRIM
support patches.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #167

diff --git a/include/sys/dkio.h b/include/sys/dkio.h
index 0659e9082541ff51d2b412379a716df77e6cffe4..591fbf51d00371639ea49ddd366f467a2e63c5a3 100644 (file)
--- a/include/sys/dkio.h
+++ b/include/sys/dkio.h
@@ -33,5 +33,6 @@ struct dk_callback {
 
 #define        DKIOC                   (0x04 << 8)
 #define        DKIOCFLUSHWRITECACHE    (DKIOC | 34)
+#define        DKIOCTRIM               (DKIOC | 35)
 
 #endif /* _SPL_DKIO_H */