diff options
| author | Rob Norris <[email protected]> | 2024-01-09 12:29:19 +1100 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2024-03-28 13:29:46 -0700 |
| commit | 03ff875e09c6578941607581e9f08658e191bbd9 (patch) | |
| tree | 9c19303dcb2c48d770a22e5338d89d11b1fc359c | |
| parent | 13b5348848b17aedc3c47017394ce3d7148be4b7 (diff) | |
vdev_disk: make read/write IO function configurable
This is just setting up for the next couple of commits, which will add a
new IO function and a parameter to select it.
Reviewed-by: Alexander Motin <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Rob Norris <[email protected]>
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Closes #15533
Closes #15588
(cherry picked from commit c4a13ba483f08a81aa47479d2f763a470d95b2b0)
| -rw-r--r-- | module/os/linux/zfs/vdev_disk.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/module/os/linux/zfs/vdev_disk.c b/module/os/linux/zfs/vdev_disk.c index 51e7cef2f..de4dba72f 100644 --- a/module/os/linux/zfs/vdev_disk.c +++ b/module/os/linux/zfs/vdev_disk.c @@ -946,6 +946,8 @@ vdev_disk_io_trim(zio_t *zio) #endif } +int (*vdev_disk_io_rw_fn)(zio_t *zio) = NULL; + static void vdev_disk_io_start(zio_t *zio) { @@ -1029,7 +1031,7 @@ vdev_disk_io_start(zio_t *zio) case ZIO_TYPE_READ: case ZIO_TYPE_WRITE: zio->io_target_timestamp = zio_handle_io_delay(zio); - error = vdev_classic_physio(zio); + error = vdev_disk_io_rw_fn(zio); rw_exit(&vd->vd_lock); if (error) { zio->io_error = error; @@ -1102,8 +1104,25 @@ vdev_disk_rele(vdev_t *vd) /* XXX: Implement me as a vnode rele for the device */ } +/* + * At first use vdev use, set the submission function from the default value if + * it hasn't been set already. + */ +static int +vdev_disk_init(spa_t *spa, nvlist_t *nv, void **tsd) +{ + (void) spa; + (void) nv; + (void) tsd; + + if (vdev_disk_io_rw_fn == NULL) + vdev_disk_io_rw_fn = vdev_classic_physio; + + return (0); +} + vdev_ops_t vdev_disk_ops = { - .vdev_op_init = NULL, + .vdev_op_init = vdev_disk_init, .vdev_op_fini = NULL, .vdev_op_open = vdev_disk_open, .vdev_op_close = vdev_disk_close, |