Re: [PATCH v2 4/4] dax/bus.c: Use the right locking mode (read vs write) in size_show

Vishal Verma wrote: > In size_show(), the dax_dev_rwsem only needs a read lock, but was > acquiring a write lock. Change it to down_read_interruptible() so it > doesn't unnecessarily hold a write lock. > > Cc: Dan Williams > Fixes: c05ae9d85b47 ("dax/bus.c: replace driver-core lock usage by a

[PATCH v2 4/4] dax/bus.c: Use the right locking mode (read vs write) in size_show

In size_show(), the dax_dev_rwsem only needs a read lock, but was acquiring a write lock. Change it to down_read_interruptible() so it doesn't unnecessarily hold a write lock. Cc: Dan Williams Fixes: c05ae9d85b47 ("dax/bus.c: replace driver-core lock usage by a local rwsem") Signed-off-by: