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authorRoss Zwisler <ross.zwisler@linux.intel.com>2017-05-08 16:00:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-08 17:15:16 -0700
commit678c9fd0430a1431bd9901c76f41e04fcb3eac87 (patch)
treef8e5572697a189cdcfcc432e5893d0248e1ac0e0 /include/trace
parentc3ff68d7d1e6a24b7ad76d00ee583929858d4001 (diff)
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dax: add tracepoints to dax_load_hole()
Add tracepoints to dax_load_hole(), following the same logging conventions as the rest of DAX. Here is the logging generated by a PTE read from a hole: read-1075 [002] .... 62.362108: dax_pte_fault: dev 259:0 ino 0x1003 shared ALLOW_RETRY|KILLABLE|USER address 0x10480000 pgoff 0x280 read-1075 [002] .... 62.362140: dax_load_hole: dev 259:0 ino 0x1003 shared ALLOW_RETRY|KILLABLE|USER address 0x10480000 pgoff 0x280 NOPAGE read-1075 [002] .... 62.362141: dax_pte_fault_done: dev 259:0 ino 0x1003 shared ALLOW_RETRY|KILLABLE|USER address 0x10480000 pgoff 0x280 NOPAGE Link: http://lkml.kernel.org/r/20170221195116.13278-4-ross.zwisler@linux.intel.com Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/fs_dax.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/trace/events/fs_dax.h b/include/trace/events/fs_dax.h
index b5a520961f8d..2f15dfea7fb1 100644
--- a/include/trace/events/fs_dax.h
+++ b/include/trace/events/fs_dax.h
@@ -192,6 +192,7 @@ DEFINE_PTE_FAULT_EVENT(dax_pte_fault);
DEFINE_PTE_FAULT_EVENT(dax_pte_fault_done);
DEFINE_PTE_FAULT_EVENT(dax_pfn_mkwrite_no_entry);
DEFINE_PTE_FAULT_EVENT(dax_pfn_mkwrite);
+DEFINE_PTE_FAULT_EVENT(dax_load_hole);
#endif /* _TRACE_FS_DAX_H */