smb3: add dynamic trace point for ioctls

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[ Upstream commit 073dd87c8e ]

It can be helpful in debugging to know which ioctls are called to better
correlate them with smb3 fsctls (and opens).  Add a dynamic trace point
to trace ioctls into cifs.ko

Here is sample output:

            TASK-PID     CPU#  |||||  TIMESTAMP  FUNCTION
               | |         |   |||||     |         |
 new-inotify-ioc-90418   [001] ..... 142157.397024: smb3_ioctl: xid=18 fid=0x0 ioctl cmd=0xc009cf0b
 new-inotify-ioc-90457   [007] ..... 142217.943569: smb3_ioctl: xid=22 fid=0x389bf5b6 ioctl cmd=0xc009cf0b

Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Steve French 2024-03-06 01:03:59 -06:00 • committed by Greg Kroah-Hartman

parent c057a809e1

commit 25f3604fcd

2 changed files with 37 additions and 0 deletions

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5

fs/smb/client/ioctl.c

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32

fs/smb/client/trace.h

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