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CIFS: Move create code use ops struct

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Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Pavel Shilovsky 2012-09-18 16:20:27 -07:00 committed by Steve French
parent b7546bc54c
commit 253641388a
3 changed files with 58 additions and 49 deletions
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95
fs/cifs/dir.c
View file

@ -160,17 +160,18 @@ check_name(struct dentry *direntry)
static int
cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
struct tcon_link *tlink, unsigned oflags, umode_t mode,
__u32 *oplock, __u16 *fileHandle, int *created)
__u32 *oplock, struct cifs_fid *fid, int *created)
{
int rc = -ENOENT;
int create_options = CREATE_NOT_DIR;
int desiredAccess;
int desired_access;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct cifs_tcon *tcon = tlink_tcon(tlink);
char *full_path = NULL;
FILE_ALL_INFO *buf = NULL;
struct inode *newinode = NULL;
int disposition;
struct TCP_Server_Info *server = tcon->ses->server;
*oplock = 0;
if (tcon->ses->server->oplocks)
@ -185,8 +186,8 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
if (tcon->unix_ext && cap_unix(tcon->ses) && !tcon->broken_posix_open &&
(CIFS_UNIX_POSIX_PATH_OPS_CAP &
le64_to_cpu(tcon->fsUnixInfo.Capability))) {
rc = cifs_posix_open(full_path, &newinode,
inode->i_sb, mode, oflags, oplock, fileHandle, xid);
rc = cifs_posix_open(full_path, &newinode, inode->i_sb, mode,
oflags, oplock, &fid->netfid, xid);
switch (rc) {
case 0:
if (newinode == NULL) {
@ -202,7 +203,7 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
* close it and proceed as if it were a normal
* lookup.
*/
CIFSSMBClose(xid, tcon, *fileHandle);
CIFSSMBClose(xid, tcon, fid->netfid);
goto cifs_create_get_file_info;
}
/* success, no need to query */
@ -244,11 +245,11 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
*/
}
desiredAccess = 0;
desired_access = 0;
if (OPEN_FMODE(oflags) & FMODE_READ)
desiredAccess |= GENERIC_READ; /* is this too little? */
desired_access |= GENERIC_READ; /* is this too little? */
if (OPEN_FMODE(oflags) & FMODE_WRITE)
desiredAccess |= GENERIC_WRITE;
desired_access |= GENERIC_WRITE;
disposition = FILE_OVERWRITE_IF;
if ((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
@ -260,8 +261,15 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
else
cFYI(1, "Create flag not set in create function");
/* BB add processing to set equivalent of mode - e.g. via CreateX with
ACLs */
/*
* BB add processing to set equivalent of mode - e.g. via CreateX with
* ACLs
*/
if (!server->ops->open) {
rc = -ENOSYS;
goto out;
}
buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
if (buf == NULL) {
@ -279,28 +287,18 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
if (backup_cred(cifs_sb))
create_options |= CREATE_OPEN_BACKUP_INTENT;
if (tcon->ses->capabilities & CAP_NT_SMBS)
rc = CIFSSMBOpen(xid, tcon, full_path, disposition,
desiredAccess, create_options,
fileHandle, oplock, buf, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
else
rc = -EIO; /* no NT SMB support fall into legacy open below */
if (rc == -EIO) {
/* old server, retry the open legacy style */
rc = SMBLegacyOpen(xid, tcon, full_path, disposition,
desiredAccess, create_options,
fileHandle, oplock, buf, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
}
rc = server->ops->open(xid, tcon, full_path, disposition,
desired_access, create_options, fid, oplock,
buf, cifs_sb);
if (rc) {
cFYI(1, "cifs_create returned 0x%x", rc);
goto out;
}
/* If Open reported that we actually created a file
then we now have to set the mode if possible */
/*
* If Open reported that we actually created a file then we now have to
* set the mode if possible.
*/
if ((tcon->unix_ext) && (*oplock & CIFS_CREATE_ACTION)) {
struct cifs_unix_set_info_args args = {
.mode = mode,
@ -321,11 +319,13 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
args.uid = NO_CHANGE_64;
args.gid = NO_CHANGE_64;
}
CIFSSMBUnixSetFileInfo(xid, tcon, &args, *fileHandle,
current->tgid);
CIFSSMBUnixSetFileInfo(xid, tcon, &args, fid->netfid,
current->tgid);
} else {
/* BB implement mode setting via Windows security
descriptors e.g. */
/*
* BB implement mode setting via Windows security
* descriptors e.g.
*/
/* CIFSSMBWinSetPerms(xid,tcon,path,mode,-1,-1,nls);*/
/* Could set r/o dos attribute if mode & 0222 == 0 */
@ -334,11 +334,11 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
cifs_create_get_file_info:
/* server might mask mode so we have to query for it */
if (tcon->unix_ext)
rc = cifs_get_inode_info_unix(&newinode, full_path,
inode->i_sb, xid);
rc = cifs_get_inode_info_unix(&newinode, full_path, inode->i_sb,
xid);
else {
rc = cifs_get_inode_info(&newinode, full_path, buf,
inode->i_sb, xid, fileHandle);
rc = cifs_get_inode_info(&newinode, full_path, buf, inode->i_sb,
xid, &fid->netfid);
if (newinode) {
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
newinode->i_mode = mode;
@ -356,7 +356,8 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
cifs_create_set_dentry:
if (rc != 0) {
cFYI(1, "Create worked, get_inode_info failed rc = %d", rc);
CIFSSMBClose(xid, tcon, *fileHandle);
if (server->ops->close)
server->ops->close(xid, tcon, fid);
goto out;
}
d_drop(direntry);
@ -377,6 +378,7 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
unsigned int xid;
struct tcon_link *tlink;
struct cifs_tcon *tcon;
struct TCP_Server_Info *server;
struct cifs_fid fid;
__u32 oplock;
struct cifsFileInfo *file_info;
@ -414,22 +416,25 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
goto out_free_xid;
tcon = tlink_tcon(tlink);
server = tcon->ses->server;
rc = cifs_do_create(inode, direntry, xid, tlink, oflags, mode,
&oplock, &fid.netfid, opened);
&oplock, &fid, opened);
if (rc)
goto out;
rc = finish_open(file, direntry, generic_file_open, opened);
if (rc) {
CIFSSMBClose(xid, tcon, fid.netfid);
if (server->ops->close)
server->ops->close(xid, tcon, &fid);
goto out;
}
file_info = cifs_new_fileinfo(&fid, file, tlink, oplock);
if (file_info == NULL) {
CIFSSMBClose(xid, tcon, fid.netfid);
if (server->ops->close)
server->ops->close(xid, tcon, &fid);
rc = -ENOMEM;
}
@ -454,7 +459,9 @@ int cifs_create(struct inode *inode, struct dentry *direntry, umode_t mode,
*/
unsigned oflags = O_EXCL | O_CREAT | O_RDWR;
struct tcon_link *tlink;
__u16 fileHandle;
struct cifs_tcon *tcon;
struct TCP_Server_Info *server;
struct cifs_fid fid;
__u32 oplock;
int created = FILE_CREATED;
@ -467,9 +474,11 @@ int cifs_create(struct inode *inode, struct dentry *direntry, umode_t mode,
goto out_free_xid;
rc = cifs_do_create(inode, direntry, xid, tlink, oflags, mode,
&oplock, &fileHandle, &created);
if (!rc)
CIFSSMBClose(xid, tlink_tcon(tlink), fileHandle);
&oplock, &fid, &created);
tcon = tlink_tcon(tlink);
server = tcon->ses->server;
if (!rc && server->ops->close)
server->ops->close(xid, tcon, &fid);
cifs_put_tlink(tlink);
out_free_xid:

10
fs/cifs/file.c
View file

@ -312,13 +312,13 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
if (list_empty(&cifsi->openFileList)) {
cFYI(1, "closing last open instance for inode %p",
cifs_file->dentry->d_inode);
/* in strict cache mode we need invalidate mapping on the last
close because it may cause a error when we open this file
again and get at least level II oplock */
/*
* In strict cache mode we need invalidate mapping on the last
* close because it may cause a error when we open this file
* again and get at least level II oplock.
*/
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO)
CIFS_I(inode)->invalid_mapping = true;
cifs_set_oplock_level(cifsi, 0);
}
spin_unlock(&cifs_file_list_lock);

2
fs/cifs/smb1ops.c
View file

@ -622,7 +622,7 @@ cifs_open_file(const unsigned int xid, struct cifs_tcon *tcon, const char *path,
{
if (!(tcon->ses->capabilities & CAP_NT_SMBS))
return SMBLegacyOpen(xid, tcon, path, disposition,
desired_access, CREATE_NOT_DIR,
desired_access, create_options,
&fid->netfid, oplock, buf,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags
& CIFS_MOUNT_MAP_SPECIAL_CHR);