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authorTom Zanussi <tzanussi@gmail.com>2008-08-05 13:01:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-05 14:33:46 -0700
commit32194450330be327f3b25bf6b66298bd122599e9 (patch)
tree48efcfe62b2c09396f4d9e03839f53e1577a4019 /kernel/rcupdate.c
parent60cadec9da7b6c91aca51f408c828f7e74a68379 (diff)
downloadop-kernel-dev-32194450330be327f3b25bf6b66298bd122599e9.zip
op-kernel-dev-32194450330be327f3b25bf6b66298bd122599e9.tar.gz
relay: fix "full buffer with exactly full last subbuffer" accounting problem
In relay's current read implementation, if the buffer is completely full but hasn't triggered the buffer-full condition (i.e. the last write didn't cross the subbuffer boundary) and the last subbuffer is exactly full, the subbuffer accounting code erroneously finds nothing available. This patch fixes the problem. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Mathieu Desnoyers <compudj@krystal.dyndns.org> Cc: Andrea Righi <righi.andrea@gmail.com> Cc: <stable@kernel.org> [2.6.25.x, 2.6.26.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/rcupdate.c')
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