Move memory barrier in UnlockBufHdr to before releasing the lock.
This bug appears to have been introduced late in the development of
48354581a4 ("Allow Pin/UnpinBuffer to operate in a lockfree
manner.").
Found while debugging a bug which turned out to be independent of the
commit mentioned above.
Backpatch: -
Branch
------
master
Details
-------
http://git.postgresql.org/pg/commitdiff/87a3023c60f4bab551441492652ef19371847fd3
Modified Files
--------------
src/include/storage/buf_internals.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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