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authorSteve French <stfrench@microsoft.com>2019-02-25 13:51:11 -0600
committerSteve French <stfrench@microsoft.com>2019-03-05 18:10:04 -0600
commitadb3b4e90e103f8300cf2b7187016dad13e848c6 (patch)
tree237690772e3c71d2a8c131bc7c115aa1850b2e88 /fs/cifs/smb2pdu.c
parent0d481325a9e5e3a31bf83bfcd3690a7a7152ece1 (diff)
downloadlinux-adb3b4e90e103f8300cf2b7187016dad13e848c6.tar.bz2
smb3: add tracepoints for query dir
Adds two tracepoints - one for query_dir done (no err) and one for query_dir_err Sanple output: To start the trace in one window: trace-cmd record -e smb3_query_dir* Then in another window after doing an ls /mnt View the trace output by: trace-cmd show Sample output: TASK-PID CPU# |||| TIMESTAMP FUNCTION | | | |||| | | ls-24869 [007] .... 90695.452009: smb3_query_dir_done: xid=7 sid=0x5027d24d tid=0xb95cf25a fid=0xc41a8c3e offset=0x0 len=0x16 ls-24869 [000] .... 90695.452764: smb3_query_dir_done: xid=8 sid=0x5027d24d tid=0xb95cf25a fid=0xc41a8c3e offset=0x0 len=0x0 ls-24874 [003] .... 90701.506342: smb3_query_dir_done: xid=11 sid=0x5027d24d tid=0xb95cf25a fid=0x33ad3601 offset=0x0 len=0x8 ls-24874 [003] .... 90701.506917: smb3_query_dir_done: xid=12 sid=0x5027d24d tid=0xb95cf25a fid=0x33ad3601 offset=0x0 len=0x0 Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/smb2pdu.c')
-rw-r--r--fs/cifs/smb2pdu.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 64e172633bc4..965c4c7e87f9 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -3857,18 +3857,26 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
if (rc) {
if (rc == -ENODATA &&
rsp->sync_hdr.Status == STATUS_NO_MORE_FILES) {
+ trace_smb3_query_dir_done(xid, persistent_fid,
+ tcon->tid, tcon->ses->Suid, index, 0);
srch_inf->endOfSearch = true;
rc = 0;
- } else
+ } else {
+ trace_smb3_query_dir_err(xid, persistent_fid, tcon->tid,
+ tcon->ses->Suid, index, 0, rc);
cifs_stats_fail_inc(tcon, SMB2_QUERY_DIRECTORY_HE);
+ }
goto qdir_exit;
}
rc = smb2_validate_iov(le16_to_cpu(rsp->OutputBufferOffset),
le32_to_cpu(rsp->OutputBufferLength), &rsp_iov,
info_buf_size);
- if (rc)
+ if (rc) {
+ trace_smb3_query_dir_err(xid, persistent_fid, tcon->tid,
+ tcon->ses->Suid, index, 0, rc);
goto qdir_exit;
+ }
srch_inf->unicode = true;
@@ -3896,6 +3904,8 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
else
cifs_dbg(VFS, "illegal search buffer type\n");
+ trace_smb3_query_dir_done(xid, persistent_fid, tcon->tid,
+ tcon->ses->Suid, index, srch_inf->entries_in_buffer);
return rc;
qdir_exit: