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afs: Trace the initiation and completion of client calls

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Add tracepoints to trace the initiation and completion of client calls
within the kafs filesystem.

The afs_make_vl_call tracepoint watches calls to the volume location
database server.

The afs_make_fs_call tracepoint watches calls to the file server.

The afs_call_done tracepoint watches for call completion.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2017-11-02 15:27:51 +00:00
parent becfcc7e57
commit 025db80c9e
5 changed files with 233 additions and 20 deletions
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fs/afs/internal.h
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@@ -124,6 +124,7 @@ struct afs_call {
struct afs_call_type {
const char *name;
unsigned int op; /* Really enum afs_fs_operation */
/* deliver request or reply data to an call
* - returning an error will cause the call to be aborted