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cifs: eliminate cifs_posix_open_inode_helper

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cifs: eliminate cifs_posix_open_inode_helper

This function is redundant. The only thing it does is set the canCache
flags, but those get set in cifs_new_fileinfo anyway.

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 2010-10-13 18:50:39 -04:00 committed by Steve French
parent 6221ddd0f5
commit 2f4f26fcf3
1 changed files with 0 additions and 67 deletions
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67
fs/cifs/file.c
View file

@ -106,64 +106,6 @@ static inline int cifs_get_disposition(unsigned int flags)
return FILE_OPEN;
}
/* all arguments to this function must be checked for validity in caller */
static inline int
cifs_posix_open_inode_helper(struct inode *inode, struct file *file,
struct cifsInodeInfo *pCifsInode, __u32 oplock,
u16 netfid)
{
write_lock(&GlobalSMBSeslock);
pCifsInode = CIFS_I(file->f_path.dentry->d_inode);
if (pCifsInode == NULL) {
write_unlock(&GlobalSMBSeslock);
return -EINVAL;
}
if (pCifsInode->clientCanCacheRead) {
/* we have the inode open somewhere else
no need to discard cache data */
goto psx_client_can_cache;
}
/* BB FIXME need to fix this check to move it earlier into posix_open
BB fIX following section BB FIXME */
/* if not oplocked, invalidate inode pages if mtime or file
size changed */
/* temp = cifs_NTtimeToUnix(le64_to_cpu(buf->LastWriteTime));
if (timespec_equal(&file->f_path.dentry->d_inode->i_mtime, &temp) &&
(file->f_path.dentry->d_inode->i_size ==
(loff_t)le64_to_cpu(buf->EndOfFile))) {
cFYI(1, "inode unchanged on server");
} else {
if (file->f_path.dentry->d_inode->i_mapping) {
rc = filemap_write_and_wait(file->f_path.dentry->d_inode->i_mapping);
if (rc != 0)
CIFS_I(file->f_path.dentry->d_inode)->write_behind_rc = rc;
}
cFYI(1, "invalidating remote inode since open detected it "
"changed");
invalidate_remote_inode(file->f_path.dentry->d_inode);
} */
psx_client_can_cache:
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = true;
pCifsInode->clientCanCacheRead = true;
cFYI(1, "Exclusive Oplock granted on inode %p",
file->f_path.dentry->d_inode);
} else if ((oplock & 0xF) == OPLOCK_READ)
pCifsInode->clientCanCacheRead = true;
/* will have to change the unlock if we reenable the
filemap_fdatawrite (which does not seem necessary */
write_unlock(&GlobalSMBSeslock);
return 0;
}
/* all arguments to this function must be checked for validity in caller */
static inline int cifs_open_inode_helper(struct inode *inode,
struct cifsTconInfo *pTcon, __u32 oplock, FILE_ALL_INFO *buf,
char *full_path, int xid)
@ -271,15 +213,6 @@ int cifs_open(struct inode *inode, struct file *file)
oflags, &oplock, &netfid, xid);
if (rc == 0) {
cFYI(1, "posix open succeeded");
/* no need for special case handling of setting mode
on read only files needed here */
rc = cifs_posix_open_inode_helper(inode, file,
pCifsInode, oplock, netfid);
if (rc != 0) {
CIFSSMBClose(xid, tcon, netfid);
goto out;
}
pCifsFile = cifs_new_fileinfo(inode, netfid, file,
tlink, oflags, oplock);