Re: [PATCHv3 2/7] block: move q->sysfs_lock and queue-freeze under show/store method

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On 2/24/25 14:30, Nilay Shroff wrote:
In preparation to further simplify and group sysfs attributes which
don't require locking or require some form of locking other than q->
limits_lock, move acquire/release of q->sysfs_lock and queue freeze/
unfreeze under each attributes' respective show/store method.

While we are at it, also remove ->load_module() as it's used to load
the module before queue is freezed. Now as we moved queue-freeze under
->store(), we could load module directly from the attributes' store
method before we actually start freezing the queue. Currently, the
->load_module() is only used by "scheduler" attribute, so we now load
the relevant elevator module before we start freezing the queue in
elv_iosched_store().

Signed-off-by: Nilay Shroff <nilay@xxxxxxxxxxxxx>
---
  block/blk-sysfs.c | 210 +++++++++++++++++++++++++++++++---------------
  block/elevator.c  |  20 ++++-
  2 files changed, 162 insertions(+), 68 deletions(-)

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@xxxxxxx                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich




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