pnfs/flexfiles: Add tracepoints for detecting pnfs fallback to MDS
authorTrond Myklebust <trond.myklebust@hammerspace.com>
Thu, 18 Jul 2019 13:32:17 +0000 (09:32 -0400)
committerTrond Myklebust <trond.myklebust@hammerspace.com>
Thu, 18 Jul 2019 19:50:28 +0000 (15:50 -0400)
commitd5b9216fd5114be4ed98ca9c1ecc5f164cd8cf5e
treee81e74971e58837a9986c48cf38a2e6160a0265c
parent58bbeab425c6c5e318f5b6ae31d351331ddfb34b
pnfs/flexfiles: Add tracepoints for detecting pnfs fallback to MDS

Add tracepoints to allow debugging of the event chain leading to
a pnfs fallback to doing I/O through the MDS.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
fs/nfs/flexfilelayout/flexfilelayout.c
fs/nfs/nfs4trace.c
fs/nfs/nfs4trace.h
fs/nfs/pnfs.c
include/linux/nfs4.h