Eric Van Hensbergen wrote on Sat, Feb 18, 2023 at 12:33:13AM +0000: > Add maximum p9 header size to MSIZE to make sure we can > have page aligned data. > > Signed-off-by: Eric Van Hensbergen <ericvh@xxxxxxxxxx> I'd be tempted to round that up to the next PAGE_SIZE, but it likely won't make any difference in practice if we want to round the actual payload. Let's go for this. Reviewed-by: Dominique Martinet <asmadeus@xxxxxxxxxxxxx> > --- > net/9p/client.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/net/9p/client.c b/net/9p/client.c > index 622ec6a586ee..6c2a768a6ab1 100644 > --- a/net/9p/client.c > +++ b/net/9p/client.c > @@ -28,7 +28,11 @@ > #define CREATE_TRACE_POINTS > #include <trace/events/9p.h> > > -#define DEFAULT_MSIZE (128 * 1024) > +/* DEFAULT MSIZE = 32 pages worth of payload + P9_HDRSZ + > + * room for write (16 extra) or read (11 extra) operands. > + */ > + > +#define DEFAULT_MSIZE ((128 * 1024) + P9_IOHDRSZ) > > /* Client Option Parsing (code inspired by NFS code) > * - a little lazy - parse all client options
