forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Support 'discard sectors' operation in translation layer support core

Browse source 
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
David Woodhouse 2008-08-05 18:08:25 +01:00 • committed by Jens Axboe
commit eae9acd13a
3 changed files with 19 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/linux/blkdev.h
View file

@ -81,6 +81,7 @@ enum {
*/
REQ_LB_OP_EJECT = 0x40, /* eject request */
REQ_LB_OP_FLUSH = 0x41, /* flush device */
REQ_LB_OP_DISCARD = 0x42, /* discard sectors */
};
/*

2
include/linux/mtd/blktrans.h
View file

@ -41,6 +41,8 @@ struct mtd_blktrans_ops {
unsigned long block, char *buffer);
int (*writesect)(struct mtd_blktrans_dev *dev,
unsigned long block, char *buffer);
int (*discard)(struct mtd_blktrans_dev *dev,
unsigned long block, unsigned nr_blocks);
/* Block layer ioctls */
int (*getgeo)(struct mtd_blktrans_dev *dev, struct hd_geometry *geo);