SUNRPC: Restructure svc_tcp_recv_record()

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Refactor: svc_recvfrom() is going to be converted to read into
bio_vecs in a moment. Unhook the only other caller,
svc_tcp_recv_record(), which just wants to read the 4-byte stream
record marker into a kvec.

While we're in the area, streamline this helper by straight-lining
the hot path, replace dprintk call sites with tracepoints, and
reduce the number of atomic bit operations in this path.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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This commit is contained in:

Chuck Lever 2020-03-16 14:53:04 -04:00

parent 02648908d1

commit a5cda73e49

2 changed files with 49 additions and 26 deletions

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24

include/trace/events/sunrpc.h

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51

net/sunrpc/svcsock.c

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