From: Dave Chinner <dchinner@xxxxxxxxxx> Recent event tracing during a debugging session showed that flags that define the IO type for a buffer are leaking into the flags on the buffer incorrectly. Fix the flag exclusion mask in xfs_buf_alloc() to avoid problems that may be caused by such leakage. Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx> --- fs/xfs/xfs_buf.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index af8480d..b2795ba 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -178,9 +178,10 @@ xfs_buf_alloc( return NULL; /* - * We don't want certain flags to appear in b_flags. + * We don't want certain flags to appear in b_flags unless they are + * specifically set by later operations on the buffer. */ - flags &= ~(XBF_MAPPED|XBF_READ_AHEAD); + flags &= ~(XBF_MAPPED | XBF_TRYLOCK | XBF_ASYNC | XBF_READ_AHEAD); atomic_set(&bp->b_hold, 1); atomic_set(&bp->b_lru_ref, 1); -- 1.7.9.5 _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
