On Sun, Oct 21, 2018 at 7:48 AM Jeremy Allison <jra@xxxxxxxxx> wrote: > > On Sat, Oct 20, 2018 at 12:12:01AM -0500, Steve French via samba-technical wrote: > > Was experimenting with a patch to display the open files on a Linux > > network mount for debugging > > > > Would something like this new pseudo-file for the client to allow > > debugging problems where it is important to see the currently open > > files from the client's perspective be useful as is? additional info > > from dentry or inode needed? or ok with the terse output here? > > You need to print enough info such that the > server operator can identify associated open > files using the protocol fields you print out. > > What (IMHO) would be massively useful is the > sequence number when the file was originally > opened (i.e. the SMB2 sequence number you > sent when you originally did the SMB2CreateFile > call). > > That would really help match wireshark network > traces to client activity. Do you like this output better? added the last component of the path and also the mid # cat /proc/fs/cifs/open_files Display debugging information for open files treeid: 0x8dce084 \\localhost\test Persistent fid: 0xaddde0a9 name: rofile flags 0x8000 count 1 pid: 7860 uid: 1000 mid 0x30 Persistent fid: 0xd634fe34 name: smallfile flags 0x8000 count 1 pid: 7858 uid: 1000 mid 0x24 Persistent fid: 0xc90bfdc9 name: smallfile flags 0x8000 count 1 pid: 7857 uid: 1000 mid 0x1a treeid: 0x34b9815b \\localhost\scratch Persistent fid: 0x86a6e394 name: f71 flags 0x8000 count 1 pid: 7861 uid: 1000 mid 0x20 > > sfrench@smf-Thinkpad-P51:~/$ ls /proc/fs/cifs/ -la > > total 0 > > dr-xr-xr-x 2 root root 0 Oct 20 00:07 . > > dr-xr-xr-x 9 root root 0 Oct 19 09:56 .. > > -rw-r--r-- 1 root root 0 Oct 20 00:07 cifsFYI > > -r--r--r-- 1 root root 0 Oct 20 00:07 DebugData > > -rw-r--r-- 1 root root 0 Oct 20 00:07 LinuxExtensionsEnabled > > -rw-r--r-- 1 root root 0 Oct 20 00:07 LookupCacheEnabled > > -r--r--r-- 1 root root 0 Oct 20 00:07 open_files > > -rw-r--r-- 1 root root 0 Oct 20 00:07 SecurityFlags > > -rw-r--r-- 1 root root 0 Oct 20 00:07 Stats > > -rw-r--r-- 1 root root 0 Oct 20 00:07 traceSMB > > > > > > sfrench@smf-Thinkpad-P51:~/$ cat /proc/fs/cifs/open_files > > Display debugging information for open files > > -------------------------------------------- > > tcon: 0x15329b49 \\localhost\test > > persistent fid: 0x7688e758 flags 0x8000 count 1 pid: 23477 uid: 1000 > > persistent fid: 0xd5b54934 flags 0x8000 count 1 pid: 23476 uid: 0 -- Thanks, Steve
