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Commit 53ef1016 authored by Pavel Shilovsky's avatar Pavel Shilovsky Committed by Steve French
Browse files

CIFS: Store lease state itself rather than a mapped oplock value 



and separate smb20_operations struct.

Signed-off-by: default avatarPavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: default avatarSteve French <smfrench@gmail.com>
parent 18cceb6a

fs/cifs/cifsglob.h

+9 −7
Original line number Diff line number Diff line
@@ -367,11 +367,13 @@ struct smb_version_operations { 
	/* generate new lease key */

	void (*new_lease_key)(struct cifs_fid *fid);

	int (*generate_signingkey)(struct cifs_ses *);

	int (*calc_signature)(struct smb_rqst *rqst,

				   struct TCP_Server_Info *server);

	int (*query_mf_symlink)(const unsigned char *path, char *pbuf,

			unsigned int *pbytes_read, struct cifs_sb_info *cifs_sb,

			unsigned int xid);

	int (*calc_signature)(struct smb_rqst *, struct TCP_Server_Info *);

	int (*query_mf_symlink)(const unsigned char *, char *, unsigned int *,

				struct cifs_sb_info *, unsigned int);

	/* if we can do cache read operations */

	bool (*is_read_op)(__u32);

	/* set oplock level for the inode */

	void (*set_oplock_level)(struct cifsInodeInfo *, __u32);

};



struct smb_version_values {
@@ -389,7 +391,6 @@ struct smb_version_values { 
	unsigned int	cap_unix;

	unsigned int	cap_nt_find;

	unsigned int	cap_large_files;

	unsigned int	oplock_read;

	__u16		signing_enabled;

	__u16		signing_required;

};
@@ -1036,6 +1037,7 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file); 
#define CIFS_CACHE_WRITE_FLG	4



#define CIFS_CACHE_READ(cinode) (cinode->oplock & CIFS_CACHE_READ_FLG)

#define CIFS_CACHE_HANDLE(cinode) (cinode->oplock & CIFS_CACHE_HANDLE_FLG)

#define CIFS_CACHE_WRITE(cinode) (cinode->oplock & CIFS_CACHE_WRITE_FLG)



/*
@@ -1507,7 +1509,7 @@ extern mempool_t *cifs_mid_poolp; 
extern struct smb_version_operations smb1_operations;

extern struct smb_version_values smb1_values;

#define SMB20_VERSION_STRING	"2.0"

/*extern struct smb_version_operations smb20_operations; */ /* not needed yet */

extern struct smb_version_operations smb20_operations;

extern struct smb_version_values smb20_values;

#define SMB21_VERSION_STRING	"2.1"

extern struct smb_version_operations smb21_operations;

fs/cifs/connect.c

+1 −1
Original line number Diff line number Diff line
@@ -1116,7 +1116,7 @@ cifs_parse_smb_version(char *value, struct smb_vol *vol) 
		break;

#ifdef CONFIG_CIFS_SMB2

	case Smb_20:

		vol->ops = &smb21_operations; /* currently identical with 2.1 */

		vol->ops = &smb20_operations;

		vol->vals = &smb20_values;

		break;

	case Smb_21:

fs/cifs/file.c

+1 −2
Original line number Diff line number Diff line
@@ -313,8 +313,7 @@ cifs_new_fileinfo(struct cifs_fid *fid, struct file *file, 
	 * If the server returned a read oplock and we have mandatory brlocks,

	 * set oplock level to None.

	 */

	if (oplock == server->vals->oplock_read &&

						cifs_has_mand_locks(cinode)) {

	if (server->ops->is_read_op(oplock) && cifs_has_mand_locks(cinode)) {

		cifs_dbg(FYI, "Reset oplock val from read to None due to mand locks\n");

		oplock = 0;

	}

fs/cifs/smb1ops.c

+7 −1
Original line number Diff line number Diff line
@@ -912,6 +912,12 @@ cifs_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, 
	return rc;

}



static bool

cifs_is_read_op(__u32 oplock)

{

	return oplock == OPLOCK_READ;

}



struct smb_version_operations smb1_operations = {

	.send_cancel = send_nt_cancel,

	.compare_fids = cifs_compare_fids,
@@ -977,6 +983,7 @@ struct smb_version_operations smb1_operations = { 
	.mand_unlock_range = cifs_unlock_range,

	.push_mand_locks = cifs_push_mandatory_locks,

	.query_mf_symlink = open_query_close_cifs_symlink,

	.is_read_op = cifs_is_read_op,

};



struct smb_version_values smb1_values = {
@@ -992,7 +999,6 @@ struct smb_version_values smb1_values = { 
	.cap_unix = CAP_UNIX,

	.cap_nt_find = CAP_NT_SMBS | CAP_NT_FIND,

	.cap_large_files = CAP_LARGE_FILES,

	.oplock_read = OPLOCK_READ,

	.signing_enabled = SECMODE_SIGN_ENABLED,

	.signing_required = SECMODE_SIGN_REQUIRED,

};

fs/cifs/smb2file.c

+0 −23
Original line number Diff line number Diff line
@@ -34,29 +34,6 @@ 
#include "fscache.h"

#include "smb2proto.h"



void

smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock)

{

	oplock &= 0xFF;

	if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE)

		return;

	if (oplock == SMB2_OPLOCK_LEVEL_BATCH) {

		cinode->oplock = CIFS_CACHE_READ_FLG | CIFS_CACHE_WRITE_FLG |

				 CIFS_CACHE_HANDLE_FLG;

		cifs_dbg(FYI, "Batch Oplock granted on inode %p\n",

			 &cinode->vfs_inode);

	} else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) {

		cinode->oplock = CIFS_CACHE_READ_FLG | CIFS_CACHE_WRITE_FLG;

		cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n",

			 &cinode->vfs_inode);

	} else if (oplock == SMB2_OPLOCK_LEVEL_II) {

		cinode->oplock = CIFS_CACHE_READ_FLG;

		cifs_dbg(FYI, "Level II Oplock granted on inode %p\n",

			 &cinode->vfs_inode);

	} else

		cinode->oplock = 0;

}



int

smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms,

	       __u32 *oplock, FILE_ALL_INFO *buf)