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authorMikael Pettersson <mikpe@it.uu.se>2008-07-30 15:40:50 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-30 15:40:50 -0700
commitd72609e17fd93bb2f7e0f7e1bdc70b6d20e43843 (patch)
treed2b2ec57bbee2759e6cfdbc4269211dad888e79f /REPORTING-BUGS
parent19fd3cabbabe5d37b83f833a1593592ed9878236 (diff)
sparc64: FUTEX_OP_ANDN fix
Correct sparc64's implementation of FUTEX_OP_ANDN to do a bitwise negate of the oparg parameter before applying the AND operation. All other archs that support FUTEX_OP_ANDN either negate oparg explicitly (frv, ia64, mips, sh, x86), or do so indirectly by using an and-not instruction (powerpc). Since sparc64 has and-not, I chose to use that solution. I've not found any use of FUTEX_OP_ANDN in glibc so the impact of this bug is probably minor. But other user-space components may try to use it so it should still get fixed. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'REPORTING-BUGS')
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