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cifs: eliminate the inode argument from cifs_new_fileinfo

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It already takes a file pointer. The inode associated with that had damn
well better be the same one we're passing in anyway. Thus, there's no
need for a separate argument here.

Also, get rid of the bogus check for a null pCifsInode pointer. The
CIFS_I macro uses container_of(), and that will virtually never return a
NULL pointer anyway.

Finally, move the setting of the canCache* flags outside of the lock.
Other places in the code don't hold that lock when setting it, so I
assume it's not really needed here either.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Suresh Jayaraman <sjayaraman@suse.de>
Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Jeff Layton 2010-10-15 15:33:58 -04:00 committed by Steve French
parent f6a53460e2
commit abfe1eedd6
3 changed files with 22 additions and 27 deletions
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3
fs/cifs/cifsproto.h
View file

@ -105,8 +105,7 @@ extern u64 cifs_UnixTimeToNT(struct timespec);
extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
int offset);
extern struct cifsFileInfo *cifs_new_fileinfo(struct inode *newinode,
__u16 fileHandle, struct file *file,
extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle, struct file *file,
struct tcon_link *tlink, __u32 oplock);
extern int cifs_posix_open(char *full_path, struct inode **pinode,
struct super_block *sb,

40
fs/cifs/dir.c
View file

@ -131,12 +131,13 @@ build_path_from_dentry(struct dentry *direntry)
}
struct cifsFileInfo *
cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle, struct file *file,
cifs_new_fileinfo(__u16 fileHandle, struct file *file,
struct tcon_link *tlink, __u32 oplock)
{
struct dentry *dentry = file->f_path.dentry;
struct inode *inode = dentry->d_inode;
struct cifsInodeInfo *pCifsInode = CIFS_I(inode);
struct cifsFileInfo *pCifsFile;
struct cifsInodeInfo *pCifsInode;
pCifsFile = kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL);
if (pCifsFile == NULL)
@ -158,24 +159,20 @@ cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle, struct file *file,
write_lock(&GlobalSMBSeslock);
list_add(&pCifsFile->tlist, &(tlink_tcon(tlink)->openFileList));
pCifsInode = CIFS_I(newinode);
if (pCifsInode) {
/* if readable file instance put first in list*/
if (file->f_mode & FMODE_READ)
list_add(&pCifsFile->flist, &pCifsInode->openFileList);
else
list_add_tail(&pCifsFile->flist,
&pCifsInode->openFileList);
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = true;
pCifsInode->clientCanCacheRead = true;
cFYI(1, "Exclusive Oplock inode %p", newinode);
} else if ((oplock & 0xF) == OPLOCK_READ)
pCifsInode->clientCanCacheRead = true;
}
/* if readable file instance put first in list*/
if (file->f_mode & FMODE_READ)
list_add(&pCifsFile->flist, &pCifsInode->openFileList);
else
list_add_tail(&pCifsFile->flist, &pCifsInode->openFileList);
write_unlock(&GlobalSMBSeslock);
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = true;
pCifsInode->clientCanCacheRead = true;
cFYI(1, "Exclusive Oplock inode %p", inode);
} else if ((oplock & 0xF) == OPLOCK_READ)
pCifsInode->clientCanCacheRead = true;
file->private_data = pCifsFile;
return pCifsFile;
@ -395,8 +392,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
goto cifs_create_out;
}
pfile_info = cifs_new_fileinfo(newinode, fileHandle, filp,
tlink, oplock);
pfile_info = cifs_new_fileinfo(fileHandle, filp, tlink, oplock);
if (pfile_info == NULL) {
fput(filp);
CIFSSMBClose(xid, tcon, fileHandle);
@ -669,8 +665,8 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
goto lookup_out;
}
cfile = cifs_new_fileinfo(newInode, fileHandle, filp,
tlink, oplock);
cfile = cifs_new_fileinfo(fileHandle, filp, tlink,
oplock);
if (cfile == NULL) {
fput(filp);
CIFSSMBClose(xid, pTcon, fileHandle);

6
fs/cifs/file.c
View file

@ -272,8 +272,8 @@ int cifs_open(struct inode *inode, struct file *file)
if (rc == 0) {
cFYI(1, "posix open succeeded");
pCifsFile = cifs_new_fileinfo(inode, netfid, file,
tlink, oplock);
pCifsFile = cifs_new_fileinfo(netfid, file, tlink,
oplock);
if (pCifsFile == NULL) {
CIFSSMBClose(xid, tcon, netfid);
rc = -ENOMEM;
@ -365,7 +365,7 @@ int cifs_open(struct inode *inode, struct file *file)
if (rc != 0)
goto out;
pCifsFile = cifs_new_fileinfo(inode, netfid, file, tlink, oplock);
pCifsFile = cifs_new_fileinfo(netfid, file, tlink, oplock);
if (pCifsFile == NULL) {
rc = -ENOMEM;
goto out;