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Diffstat (limited to 'fs/cifs/file.c')
-rw-r--r--fs/cifs/file.c66
1 files changed, 37 insertions, 29 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 38c06f826575..302ea15f02e6 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -130,10 +130,6 @@ static inline int cifs_posix_open_inode_helper(struct inode *inode,
struct cifsFileInfo *pCifsFile, int oplock, u16 netfid)
{
- 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);
pCifsInode = CIFS_I(file->f_path.dentry->d_inode);
@@ -184,6 +180,38 @@ psx_client_can_cache:
return 0;
}
+static struct cifsFileInfo *
+cifs_fill_filedata(struct file *file)
+{
+ struct list_head *tmp;
+ struct cifsFileInfo *pCifsFile = NULL;
+ struct cifsInodeInfo *pCifsInode = NULL;
+
+ /* search inode for this file and fill in file->private_data */
+ pCifsInode = CIFS_I(file->f_path.dentry->d_inode);
+ read_lock(&GlobalSMBSeslock);
+ list_for_each(tmp, &pCifsInode->openFileList) {
+ pCifsFile = list_entry(tmp, struct cifsFileInfo, flist);
+ if ((pCifsFile->pfile == NULL) &&
+ (pCifsFile->pid == current->tgid)) {
+ /* mode set in cifs_create */
+
+ /* needed for writepage */
+ pCifsFile->pfile = file;
+ file->private_data = pCifsFile;
+ break;
+ }
+ }
+ read_unlock(&GlobalSMBSeslock);
+
+ if (file->private_data != NULL) {
+ return pCifsFile;
+ } else if ((file->f_flags & O_CREAT) && (file->f_flags & O_EXCL))
+ cERROR(1, ("could not find file instance for "
+ "new file %p", file));
+ return NULL;
+}
+
/* all arguments to this function must be checked for validity in caller */
static inline int cifs_open_inode_helper(struct inode *inode, struct file *file,
struct cifsInodeInfo *pCifsInode, struct cifsFileInfo *pCifsFile,
@@ -258,7 +286,6 @@ int cifs_open(struct inode *inode, struct file *file)
struct cifsTconInfo *tcon;
struct cifsFileInfo *pCifsFile;
struct cifsInodeInfo *pCifsInode;
- struct list_head *tmp;
char *full_path = NULL;
int desiredAccess;
int disposition;
@@ -270,32 +297,12 @@ int cifs_open(struct inode *inode, struct file *file)
cifs_sb = CIFS_SB(inode->i_sb);
tcon = cifs_sb->tcon;
- /* search inode for this file and fill in file->private_data */
pCifsInode = CIFS_I(file->f_path.dentry->d_inode);
- read_lock(&GlobalSMBSeslock);
- list_for_each(tmp, &pCifsInode->openFileList) {
- pCifsFile = list_entry(tmp, struct cifsFileInfo,
- flist);
- if ((pCifsFile->pfile == NULL) &&
- (pCifsFile->pid == current->tgid)) {
- /* mode set in cifs_create */
-
- /* needed for writepage */
- pCifsFile->pfile = file;
-
- file->private_data = pCifsFile;
- break;
- }
- }
- read_unlock(&GlobalSMBSeslock);
-
- if (file->private_data != NULL) {
- rc = 0;
+ pCifsFile = cifs_fill_filedata(file);
+ if (pCifsFile) {
FreeXid(xid);
- return rc;
- } else if ((file->f_flags & O_CREAT) && (file->f_flags & O_EXCL))
- cERROR(1, ("could not find file instance for "
- "new file %p", file));
+ return 0;
+ }
full_path = build_path_from_dentry(file->f_path.dentry);
if (full_path == NULL) {
@@ -325,6 +332,7 @@ int cifs_open(struct inode *inode, struct file *file)
/* no need for special case handling of setting mode
on read only files needed here */
+ pCifsFile = cifs_fill_filedata(file);
cifs_posix_open_inode_helper(inode, file, pCifsInode,
pCifsFile, oplock, netfid);
goto out;

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