Matthew Wilcox c5beb07e7a XArray: Unify xa_cmpxchg and __xa_cmpxchg ...

xa_cmpxchg() was one of the largest functions in the xarray
implementation.  By turning it into a wrapper and having the callers
take the lock (like several other functions), we save 160 bytes on a
tinyconfig build and reduce the duplication in xarray.c.

Signed-off-by: Matthew Wilcox <willy@infradead.org>

2018-11-05 16:38:08 -05:00

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