Commit ac3ad984 authored by Bharath SM's avatar Bharath SM Committed by Steve French
Browse files

smb: client: show lease state as R/H/W (or NONE) in open_files 



Print the lease/oplock caching state for each open file as a
compact string of letters: R (read), H (handle), W (write).

Signed-off-by: default avatarBharath SM <bharathsm@microsoft.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 998a67b9

fs/smb/client/cifs_debug.c

+28 −5
Original line number Diff line number Diff line
@@ -240,14 +240,18 @@ static int cifs_debug_files_proc_show(struct seq_file *m, void *v) 
	struct cifs_ses *ses;

	struct cifs_tcon *tcon;

	struct cifsFileInfo *cfile;

	struct inode *inode;

	struct cifsInodeInfo *cinode;

	char lease[4];

	int n;



	seq_puts(m, "# Version:1\n");

	seq_puts(m, "# Format:\n");

	seq_puts(m, "# <tree id> <ses id> <persistent fid> <flags> <count> <pid> <uid>");

#ifdef CONFIG_CIFS_DEBUG2

	seq_printf(m, " <filename> <mid>\n");

	seq_puts(m, " <filename> <lease> <mid>\n");

#else

	seq_printf(m, " <filename>\n");

	seq_puts(m, " <filename> <lease>\n");

#endif /* CIFS_DEBUG2 */

	spin_lock(&cifs_tcp_ses_lock);

	list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) {
@@ -267,11 +271,30 @@ static int cifs_debug_files_proc_show(struct seq_file *m, void *v) 
						cfile->pid,

						from_kuid(&init_user_ns, cfile->uid),

						cfile->dentry);



					/* Append lease/oplock caching state as RHW letters */

					inode = d_inode(cfile->dentry);

					n = 0;

					if (inode) {

						cinode = CIFS_I(inode);

						if (CIFS_CACHE_READ(cinode))

							lease[n++] = 'R';

						if (CIFS_CACHE_HANDLE(cinode))

							lease[n++] = 'H';

						if (CIFS_CACHE_WRITE(cinode))

							lease[n++] = 'W';

					}

					lease[n] = '\0';

					seq_puts(m, " ");

					if (n)

						seq_printf(m, "%s", lease);

					else

						seq_puts(m, "NONE");



#ifdef CONFIG_CIFS_DEBUG2

					seq_printf(m, " %llu\n", cfile->fid.mid);

#else

					seq_printf(m, " %llu", cfile->fid.mid);

#endif /* CONFIG_CIFS_DEBUG2 */

					seq_printf(m, "\n");

#endif /* CIFS_DEBUG2 */

				}

				spin_unlock(&tcon->open_file_lock);

			}