[POWERPC] spufs: Fix lost events in poll/epoll on mfc

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When waiting for I/O events on mfc in an SPU context by using
poll/epoll syscalls, some of the events can be lost because of wrong
order of poll_wait and MFC status checks in the spufs_mfc_poll
function and non-atomic update of tagwait.  This fixes the
problem.

Signed-off-by: Kazunori Asayama <asayama@sm.sony.co.jp>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

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Kazunori Asayama 2007-06-29 10:58:08 +10:00 • committed by Paul Mackerras

parent fe2f896d67

commit 933b0e3524

1 changed files with 5 additions and 4 deletions

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arch/powerpc/platforms/cell/spufs/file.c

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