Linux compat 4.16: blk_queue_flag_{set,clear}

The HAVE_BLK_QUEUE_WRITE_CACHE_GPL_ONLY case was overlooked in
the original 10f88c5c commit because blk_queue_write_cache()
was available for the in-kernel builds.

Update the blk_queue_flag_{set,clear} wrappers to call the locked
versions to avoid confusion.  This is safe for all existing callers.

The blk_queue_set_write_cache() function has been updated to use
these wrappers.  This means setting/clearing both QUEUE_FLAG_WC
and QUEUE_FLAG_FUA is no longer atomic but this only done early
in zvol_alloc() prior to any requests so there is no issue.

Reviewed-by: Tony Hutter <[email protected]>
Reviewed-by: Giuseppe Di Natale <[email protected]>
Reviewed-by: Kash Pande <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #7428 
Closes #7431 

0 files changed, 0 insertions, 0 deletions