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Handle all io on bio handler

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Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Robert Baldyga
2021-05-17 17:02:38 +02:00
parent fbc3906576
commit 7343cb55fa
14 changed files with 374 additions and 180 deletions
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12
modules/cas_disk/cas_disk.h
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@@ -11,13 +11,10 @@
/**
* Version of cas_disk interface
*/
#define CASDSK_IFACE_VERSION 2
#define CASDSK_IFACE_VERSION 3
struct casdsk_disk;
#define CASDSK_BIO_NOT_HANDLED 0
#define CASDSK_BIO_HANDLED 1
struct casdsk_exp_obj_ops {
/**
@@ -41,14 +38,11 @@ struct casdsk_exp_obj_ops {
int (*set_geometry)(struct casdsk_disk *dsk, void *private);
/**
* @brief make_request_fn of exported object (top) block device.
* @brief submit_bio of exported object (top) block device.
* Called by cas_disk when cas_disk device is in attached mode.
*
* @return casdsk_BIO_HANDLED when bio was handled.
* Otherwise casdsk_BIO_NOT_HANDLED. In this case bio will be submitted
* to I/O scheduler and should be handled by request_fn.
*/
int (*make_request_fn)(struct casdsk_disk *dsk, struct request_queue *q,
void (*submit_bio)(struct casdsk_disk *dsk,
struct bio *bio, void *private);
/**