Fix __wait_on_atomic_t() to call the action func if the counter != 0
Fix __wait_on_atomic_t() so that it calls the action func if the counter != 0 rather than if the counter is 0 so as to be analogous to __wait_on_bit(). Thanks to Yacine who found this by visual inspection. This will affect FS-Cache in that it will could fail to sleep correctly when trying to clean up after a netfs cookie is withdrawn. Reported-by: NYacine Belkadi <yacine.belkadi.1@gmail.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> Reviewed-by: NJeff Layton <jlayton@redhat.com> cc: Milosz Tanski <milosz@adfin.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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