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authorTrond Myklebust <trond.myklebust@hammerspace.com>2019-07-18 09:32:17 -0400
committerTrond Myklebust <trond.myklebust@hammerspace.com>2019-07-18 15:50:28 -0400
commitd5b9216fd5114be4ed98ca9c1ecc5f164cd8cf5e (patch)
treee81e74971e58837a9986c48cf38a2e6160a0265c /fs/nfs/nfs4trace.c
parent58bbeab425c6c5e318f5b6ae31d351331ddfb34b (diff)
downloadlinux-d5b9216fd5114be4ed98ca9c1ecc5f164cd8cf5e.tar.bz2
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>
Diffstat (limited to 'fs/nfs/nfs4trace.c')
-rw-r--r--fs/nfs/nfs4trace.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/nfs/nfs4trace.c b/fs/nfs/nfs4trace.c
index e9fb3e50a999..1a8f376b3f73 100644
--- a/fs/nfs/nfs4trace.c
+++ b/fs/nfs/nfs4trace.c
@@ -16,4 +16,12 @@
EXPORT_TRACEPOINT_SYMBOL_GPL(nfs4_pnfs_read);
EXPORT_TRACEPOINT_SYMBOL_GPL(nfs4_pnfs_write);
EXPORT_TRACEPOINT_SYMBOL_GPL(nfs4_pnfs_commit_ds);
+
+EXPORT_TRACEPOINT_SYMBOL_GPL(pnfs_mds_fallback_pg_init_read);
+EXPORT_TRACEPOINT_SYMBOL_GPL(pnfs_mds_fallback_pg_init_write);
+EXPORT_TRACEPOINT_SYMBOL_GPL(pnfs_mds_fallback_pg_get_mirror_count);
+EXPORT_TRACEPOINT_SYMBOL_GPL(pnfs_mds_fallback_read_done);
+EXPORT_TRACEPOINT_SYMBOL_GPL(pnfs_mds_fallback_write_done);
+EXPORT_TRACEPOINT_SYMBOL_GPL(pnfs_mds_fallback_read_pagelist);
+EXPORT_TRACEPOINT_SYMBOL_GPL(pnfs_mds_fallback_write_pagelist);
#endif