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Commit 16944728 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag '4.20-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 

Pull cifs fixes and updates from Steve French:
 "Three small fixes (one Kerberos related, one for stable, and another
  fixes an oops in xfstest 377), two helpful debugging improvements,
  three patches for cifs directio and some minor cleanup"

* tag '4.20-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix signed/unsigned mismatch on aio_read patch
  cifs: don't dereference smb_file_target before null check
  CIFS: Add direct I/O functions to file_operations
  CIFS: Add support for direct I/O write
  CIFS: Add support for direct I/O read
  smb3: missing defines and structs for reparse point handling
  smb3: allow more detailed protocol info on open files for debugging
  smb3: on kerberos mount if server doesn't specify auth type use krb5
  smb3: add trace point for tree connection
  cifs: fix spelling mistake, EACCESS -> EACCES
  cifs: fix return value for cifs_listxattr
parents ed61a132 b98e26df

fs/cifs/cifs_debug.c

+56 −0
Original line number Diff line number Diff line
@@ -145,6 +145,58 @@ cifs_dump_iface(struct seq_file *m, struct cifs_server_iface *iface) 
		seq_printf(m, "\t\tIPv6: %pI6\n", &ipv6->sin6_addr);

}



static int cifs_debug_files_proc_show(struct seq_file *m, void *v)

{

	struct list_head *stmp, *tmp, *tmp1, *tmp2;

	struct TCP_Server_Info *server;

	struct cifs_ses *ses;

	struct cifs_tcon *tcon;

	struct cifsFileInfo *cfile;



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

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

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

#ifdef CONFIG_CIFS_DEBUG2

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

#else

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

#endif /* CIFS_DEBUG2 */

	spin_lock(&cifs_tcp_ses_lock);

	list_for_each(stmp, &cifs_tcp_ses_list) {

		server = list_entry(stmp, struct TCP_Server_Info,

				    tcp_ses_list);

		list_for_each(tmp, &server->smb_ses_list) {

			ses = list_entry(tmp, struct cifs_ses, smb_ses_list);

			list_for_each(tmp1, &ses->tcon_list) {

				tcon = list_entry(tmp1, struct cifs_tcon, tcon_list);

				spin_lock(&tcon->open_file_lock);

				list_for_each(tmp2, &tcon->openFileList) {

					cfile = list_entry(tmp2, struct cifsFileInfo,

						     tlist);

					seq_printf(m,

						"0x%x 0x%llx 0x%x %d %d %d %s",

						tcon->tid,

						cfile->fid.persistent_fid,

						cfile->f_flags,

						cfile->count,

						cfile->pid,

						from_kuid(&init_user_ns, cfile->uid),

						cfile->dentry->d_name.name);

#ifdef CONFIG_CIFS_DEBUG2

					seq_printf(m, " 0x%llx\n", cfile->fid.mid);

#else

					seq_printf(m, "\n");

#endif /* CIFS_DEBUG2 */

				}

				spin_unlock(&tcon->open_file_lock);

			}

		}

	}

	spin_unlock(&cifs_tcp_ses_lock);

	seq_putc(m, '\n');

	return 0;

}



static int cifs_debug_data_proc_show(struct seq_file *m, void *v)

{

	struct list_head *tmp1, *tmp2, *tmp3;
@@ -565,6 +617,9 @@ cifs_proc_init(void) 
	proc_create_single("DebugData", 0, proc_fs_cifs,

			cifs_debug_data_proc_show);



	proc_create_single("open_files", 0400, proc_fs_cifs,

			cifs_debug_files_proc_show);



	proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_fops);

	proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_fops);

	proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_fops);
@@ -601,6 +656,7 @@ cifs_proc_clean(void) 
		return;



	remove_proc_entry("DebugData", proc_fs_cifs);

	remove_proc_entry("open_files", proc_fs_cifs);

	remove_proc_entry("cifsFYI", proc_fs_cifs);

	remove_proc_entry("traceSMB", proc_fs_cifs);

	remove_proc_entry("Stats", proc_fs_cifs);

fs/cifs/cifs_spnego.c

+4 −2
Original line number Diff line number Diff line
@@ -147,8 +147,10 @@ cifs_get_spnego_key(struct cifs_ses *sesInfo) 
		sprintf(dp, ";sec=krb5");

	else if (server->sec_mskerberos)

		sprintf(dp, ";sec=mskrb5");

	else

		goto out;

	else {

		cifs_dbg(VFS, "unknown or missing server auth type, use krb5\n");

		sprintf(dp, ";sec=krb5");

	}



	dp = description + strlen(description);

	sprintf(dp, ";uid=0x%x",

fs/cifs/cifsfs.c

+9 −8
Original line number Diff line number Diff line
@@ -999,8 +999,8 @@ static loff_t cifs_remap_file_range(struct file *src_file, loff_t off, 
	struct inode *src_inode = file_inode(src_file);

	struct inode *target_inode = file_inode(dst_file);

	struct cifsFileInfo *smb_file_src = src_file->private_data;

	struct cifsFileInfo *smb_file_target = dst_file->private_data;

	struct cifs_tcon *target_tcon = tlink_tcon(smb_file_target->tlink);

	struct cifsFileInfo *smb_file_target;

	struct cifs_tcon *target_tcon;

	unsigned int xid;

	int rc;
@@ -1017,6 +1017,9 @@ static loff_t cifs_remap_file_range(struct file *src_file, loff_t off, 
		goto out;

	}



	smb_file_target = dst_file->private_data;

	target_tcon = tlink_tcon(smb_file_target->tlink);



	/*

	 * Note: cifs case is easier than btrfs since server responsible for

	 * checks for proper open modes and file type and if it wants
@@ -1180,9 +1183,8 @@ const struct file_operations cifs_file_strict_ops = { 
};



const struct file_operations cifs_file_direct_ops = {

	/* BB reevaluate whether they can be done with directio, no cache */

	.read_iter = cifs_user_readv,

	.write_iter = cifs_user_writev,

	.read_iter = cifs_direct_readv,

	.write_iter = cifs_direct_writev,

	.open = cifs_open,

	.release = cifs_close,

	.lock = cifs_lock,
@@ -1236,9 +1238,8 @@ const struct file_operations cifs_file_strict_nobrl_ops = { 
};



const struct file_operations cifs_file_direct_nobrl_ops = {

	/* BB reevaluate whether they can be done with directio, no cache */

	.read_iter = cifs_user_readv,

	.write_iter = cifs_user_writev,

	.read_iter = cifs_direct_readv,

	.write_iter = cifs_direct_writev,

	.open = cifs_open,

	.release = cifs_close,

	.fsync = cifs_fsync,

fs/cifs/cifsfs.h

+2 −0
Original line number Diff line number Diff line
@@ -101,8 +101,10 @@ extern int cifs_open(struct inode *inode, struct file *file); 
extern int cifs_close(struct inode *inode, struct file *file);

extern int cifs_closedir(struct inode *inode, struct file *file);

extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to);

extern ssize_t cifs_direct_readv(struct kiocb *iocb, struct iov_iter *to);

extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to);

extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from);

extern ssize_t cifs_direct_writev(struct kiocb *iocb, struct iov_iter *from);

extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from);

extern int cifs_lock(struct file *, int, struct file_lock *);

extern int cifs_fsync(struct file *, loff_t, loff_t, int);

fs/cifs/cifsglob.h

+8 −0
Original line number Diff line number Diff line
@@ -1125,6 +1125,9 @@ struct cifs_fid { 
	__u8 create_guid[16];

	struct cifs_pending_open *pending_open;

	unsigned int epoch;

#ifdef CONFIG_CIFS_DEBUG2

	__u64 mid;

#endif /* CIFS_DEBUG2 */

	bool purge_cache;

};
@@ -1183,6 +1186,11 @@ struct cifs_aio_ctx { 
	unsigned int		len;

	unsigned int		total_len;

	bool			should_dirty;

	/*

	 * Indicates if this aio_ctx is for direct_io,

	 * If yes, iter is a copy of the user passed iov_iter

	 */

	bool			direct_io;

};



struct cifs_readdata;