hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[CIFS] Fix double list addition in cifs posix open code 

Remove adding open file entry twice to lists in the file
Do not fill file info twice in case of posix opens and creates

Signed-off-by: Shirish Pargaonkar <shirishp@us.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Steve French 2009-05-08 03:04:30 +00:00
parent ac68392460
commit 90e4ee5d31
2 changed files with 9 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
fs/cifs/dir.c
View File

@ -281,6 +281,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
int create_options = CREATE_NOT_DIR;
int oplock = 0;
int oflags;
bool posix_create = false;
/*
* BB below access is probably too much for mknod to request
* but we have to do query and setpathinfo so requesting
@ -328,11 +329,13 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
negotation. EREMOTE indicates DFS junction, which is not
handled in posix open */
if ((rc == 0) && (newinode == NULL))
goto cifs_create_get_file_info; /* query inode info */
else if (rc == 0) /* success, no need to query */
goto cifs_create_set_dentry;
else if ((rc != -EIO) && (rc != -EREMOTE) &&
if (rc == 0) {
posix_create = true;
if (newinode == NULL) /* query inode info */
goto cifs_create_get_file_info;
else /* success, no need to query */
goto cifs_create_set_dentry;
} else if ((rc != -EIO) && (rc != -EREMOTE) &&
(rc != -EOPNOTSUPP)) /* path not found or net err */
goto cifs_create_out;
/* else fallthrough to retry, using older open call, this is
@ -464,7 +467,7 @@ cifs_create_set_dentry:
if ((nd == NULL) || (!(nd->flags & LOOKUP_OPEN))) {
/* mknod case - do not leave file open */
CIFSSMBClose(xid, tcon, fileHandle);
} else if (newinode) {
} else if (!(posix_create) && (newinode)) {
cifs_fill_fileinfo(newinode, fileHandle,
cifs_sb->tcon, write_only);
}

14
fs/cifs/file.c
View File

@ -129,15 +129,12 @@ static inline int cifs_posix_open_inode_helper(struct inode *inode,
struct file *file, struct cifsInodeInfo *pCifsInode,
struct cifsFileInfo *pCifsFile, int oplock, u16 netfid)
{
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
/* struct timespec temp; */ /* BB REMOVEME BB */
file->private_data = kmalloc(sizeof(struct cifsFileInfo), GFP_KERNEL);
if (file->private_data == NULL)
return -ENOMEM;
pCifsFile = cifs_init_private(file->private_data, inode, file, netfid);
write_lock(&GlobalSMBSeslock);
list_add(&pCifsFile->tlist, &cifs_sb->tcon->openFileList);
pCifsInode = CIFS_I(file->f_path.dentry->d_inode);
if (pCifsInode == NULL) {
@ -145,17 +142,6 @@ static inline int cifs_posix_open_inode_helper(struct inode *inode,
return -EINVAL;
}
/* want handles we can use to read with first
in the list so we do not have to walk the
list to search for one in write_begin */
if ((file->f_flags & O_ACCMODE) == O_WRONLY) {
list_add_tail(&pCifsFile->flist,
&pCifsInode->openFileList);
} else {
list_add(&pCifsFile->flist,
&pCifsInode->openFileList);
}
if (pCifsInode->clientCanCacheRead) {
/* we have the inode open somewhere else
no need to discard cache data */