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| author | Steve French <stfrench@microsoft.com> | 2018-10-20 01:14:32 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2018-10-24 05:16:06 +0300 |
| commit | fae8044c03c3c03e06b384a6122b78a6c3a0b6a7 (patch) | |
| tree | 555b3632da5b6e5e529fa14ebbc7740b4a5a98f3 /fs/cifs/cifsglob.h | |
| parent | 8d8b26e58432cb2840048b9f8aea286be6f75de5 (diff) | |
| download | linux-fae8044c03c3c03e06b384a6122b78a6c3a0b6a7.tar.xz | |
smb3: show number of current open files in /proc/fs/cifs/Stats
To allow better debugging (for example applications with
handle leaks, or complex reconnect scenarios) display the
number of open files (on the client) and number of open
server file handles for each tcon in /proc/fs/cifs/Stats.
Note that open files on server is one larger than local
due to handle caching (in this case of the root of
the share). In this example there are two local
open files, and three (two file and one directory handle)
open on the server.
Sample output:
$ cat /proc/fs/cifs/Stats
Resources in use
CIFS Session: 1
Share (unique mount targets): 2
SMB Request/Response Buffer: 1 Pool size: 5
SMB Small Req/Resp Buffer: 1 Pool size: 30
Operations (MIDs): 0
0 session 0 share reconnects
Total vfs operations: 36 maximum at one time: 2
1) \\localhost\test
SMBs: 69
Bytes read: 27 Bytes written: 0
Open files: 2 total (local), 3 open on server
TreeConnects: 1 total 0 failed
TreeDisconnects: 0 total 0 failed
Creates: 19 total 0 failed
Closes: 16 total 0 failed
...
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 26f497bd97df..ed1e0fcb69e3 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -932,6 +932,8 @@ struct cifs_tcon { struct list_head tcon_list; int tc_count; struct list_head rlist; /* reconnect list */ + atomic_t num_local_opens; /* num of all opens including disconnected */ + atomic_t num_remote_opens; /* num of all network opens on server */ struct list_head openFileList; spinlock_t open_file_lock; /* protects list above */ struct cifs_ses *ses; /* pointer to session associated with */ |