zpool_vdev_remove() should handle EALREADY error return #15129
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When the vdev properties features was merged an extra check
was added in `spa_vdev_remove_top_check()` which checked
whether the vdev that we want to remove is already being
removed and if so return an EALREADY error.
```
static int
spa_vdev_remove_top_check(vdev_t *vd)
{
... <snip> ...
/*
* This device is already being removed
*/
if (vd->vdev_removing)
return (SET_ERROR(EALREADY));
```
Before that change we'd still fail with an error but it
was a more generic one - here is the check that failed
later in the same function:
```
/*
* There can not be a removal in progress.
*/
if (spa->spa_removing_phys.sr_state == DSS_SCANNING)
return (SET_ERROR(EBUSY));
```
Changing the error code returned from that function changed
the behavior of the removal's library interface exposed to
the userland - `spa_vdev_remove()` now returns `EZFS_UNKNOWN`
instead of `EZFS_EBUSY` that was returning before.
This patch adds logic to make `spa_vdev_remove()` mindful
of the new EALREADY code and propagating `EZFS_EBUSY`
reverting to the previously established semantics of that
function.
Relevant bug:
openzfs#15013
Signed-off-by: Serapheim Dimitropoulos <[email protected]>
Closes openzfs#15013
ahrens
approved these changes
Aug 1, 2023
mmaybee
approved these changes
Aug 1, 2023
sdimitro
added
Status: Accepted
behlendorf
pushed a commit
to behlendorf/zfs
that referenced
this pull request
Aug 1, 2023
When the vdev properties features was merged an extra check
was added in `spa_vdev_remove_top_check()` which checked
whether the vdev that we want to remove is already being
removed and if so return an EALREADY error.
```
static int
spa_vdev_remove_top_check(vdev_t *vd)
{
... <snip> ...
/*
* This device is already being removed
*/
if (vd->vdev_removing)
return (SET_ERROR(EALREADY));
```
Before that change we'd still fail with an error but it
was a more generic one - here is the check that failed
later in the same function:
```
/*
* There can not be a removal in progress.
*/
if (spa->spa_removing_phys.sr_state == DSS_SCANNING)
return (SET_ERROR(EBUSY));
```
Changing the error code returned from that function changed
the behavior of the removal's library interface exposed to
the userland - `spa_vdev_remove()` now returns `EZFS_UNKNOWN`
instead of `EZFS_EBUSY` that was returning before.
This patch adds logic to make `spa_vdev_remove()` mindful
of the new EALREADY code and propagating `EZFS_EBUSY`
reverting to the previously established semantics of that
function.
Reviewed-by: Mark Maybee <[email protected]>
Reviewed-by: Matthew Ahrens <[email protected]>
Signed-off-by: Serapheim Dimitropoulos <[email protected]>
Closes openzfs#15013
Closes openzfs#15129
7 tasks
behlendorf
pushed a commit
that referenced
this pull request
Aug 2, 2023
When the vdev properties features was merged an extra check
was added in `spa_vdev_remove_top_check()` which checked
whether the vdev that we want to remove is already being
removed and if so return an EALREADY error.
```
static int
spa_vdev_remove_top_check(vdev_t *vd)
{
... <snip> ...
/*
* This device is already being removed
*/
if (vd->vdev_removing)
return (SET_ERROR(EALREADY));
```
Before that change we'd still fail with an error but it
was a more generic one - here is the check that failed
later in the same function:
```
/*
* There can not be a removal in progress.
*/
if (spa->spa_removing_phys.sr_state == DSS_SCANNING)
return (SET_ERROR(EBUSY));
```
Changing the error code returned from that function changed
the behavior of the removal's library interface exposed to
the userland - `spa_vdev_remove()` now returns `EZFS_UNKNOWN`
instead of `EZFS_EBUSY` that was returning before.
This patch adds logic to make `spa_vdev_remove()` mindful
of the new EALREADY code and propagating `EZFS_EBUSY`
reverting to the previously established semantics of that
function.
Reviewed-by: Mark Maybee <[email protected]>
Reviewed-by: Matthew Ahrens <[email protected]>
Signed-off-by: Serapheim Dimitropoulos <[email protected]>
Closes #15013
Closes #15129
lundman
pushed a commit
to openzfsonwindows/openzfs
that referenced
this pull request
Dec 12, 2023
When the vdev properties features was merged an extra check
was added in `spa_vdev_remove_top_check()` which checked
whether the vdev that we want to remove is already being
removed and if so return an EALREADY error.
```
static int
spa_vdev_remove_top_check(vdev_t *vd)
{
... <snip> ...
/*
* This device is already being removed
*/
if (vd->vdev_removing)
return (SET_ERROR(EALREADY));
```
Before that change we'd still fail with an error but it
was a more generic one - here is the check that failed
later in the same function:
```
/*
* There can not be a removal in progress.
*/
if (spa->spa_removing_phys.sr_state == DSS_SCANNING)
return (SET_ERROR(EBUSY));
```
Changing the error code returned from that function changed
the behavior of the removal's library interface exposed to
the userland - `spa_vdev_remove()` now returns `EZFS_UNKNOWN`
instead of `EZFS_EBUSY` that was returning before.
This patch adds logic to make `spa_vdev_remove()` mindful
of the new EALREADY code and propagating `EZFS_EBUSY`
reverting to the previously established semantics of that
function.
Reviewed-by: Mark Maybee <[email protected]>
Reviewed-by: Matthew Ahrens <[email protected]>
Signed-off-by: Serapheim Dimitropoulos <[email protected]>
Closes openzfs#15013
Closes openzfs#15129
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When the vdev properties features was merged an extra check was added in
spa_vdev_remove_top_check()which checked whether the vdev that we want to remove is already being removed and if so return an EALREADY error.Before that change we'd still fail with an error but it was a more generic one - here is the check that failed later in the same function:
Changing the error code returned from that function changed the behavior of the removal's library interface exposed to the userland -
spa_vdev_remove()now returnsEZFS_UNKNOWNinstead ofEZFS_EBUSYthat was returning before.This patch adds logic to make
spa_vdev_remove()mindful of the new EALREADY code and propagatingEZFS_EBUSYreverting to the previously established semantics of that function.Relevant bug:
#15013
Testing:
Retested the error code manually with a driver program and I also double-checked that our internal QA test that was hitting this issue consistently no longer fails.
Signed-off-by: Serapheim Dimitropoulos [email protected]
Closes #15013