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Diffstat (limited to 'fs/cifs/file.c')
-rw-r--r--fs/cifs/file.c45
1 files changed, 24 insertions, 21 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 7d756721e1a6..f6ffee514c34 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -209,16 +209,14 @@ posix_open_ret:
}
#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
-static int
-cifs_nt_open(const char *full_path, struct inode *inode, struct cifs_sb_info *cifs_sb,
- struct cifs_tcon *tcon, unsigned int f_flags, __u32 *oplock,
- struct cifs_fid *fid, unsigned int xid)
+static int cifs_nt_open(const char *full_path, struct inode *inode, struct cifs_sb_info *cifs_sb,
+ struct cifs_tcon *tcon, unsigned int f_flags, __u32 *oplock,
+ struct cifs_fid *fid, unsigned int xid, struct cifs_open_info_data *buf)
{
int rc;
int desired_access;
int disposition;
int create_options = CREATE_NOT_DIR;
- FILE_ALL_INFO *buf;
struct TCP_Server_Info *server = tcon->ses->server;
struct cifs_open_parms oparms;
@@ -255,10 +253,6 @@ cifs_nt_open(const char *full_path, struct inode *inode, struct cifs_sb_info *ci
/* BB pass O_SYNC flag through on file attributes .. BB */
- buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
/* O_SYNC also has bit for O_DSYNC so following check picks up either */
if (f_flags & O_SYNC)
create_options |= CREATE_WRITE_THROUGH;
@@ -276,9 +270,8 @@ cifs_nt_open(const char *full_path, struct inode *inode, struct cifs_sb_info *ci
oparms.reconnect = false;
rc = server->ops->open(xid, &oparms, oplock, buf);
-
if (rc)
- goto out;
+ return rc;
/* TODO: Add support for calling posix query info but with passing in fid */
if (tcon->unix_ext)
@@ -294,8 +287,6 @@ cifs_nt_open(const char *full_path, struct inode *inode, struct cifs_sb_info *ci
rc = -EOPENSTALE;
}
-out:
- kfree(buf);
return rc;
}
@@ -325,9 +316,9 @@ cifs_down_write(struct rw_semaphore *sem)
static void cifsFileInfo_put_work(struct work_struct *work);
-struct cifsFileInfo *
-cifs_new_fileinfo(struct cifs_fid *fid, struct file *file,
- struct tcon_link *tlink, __u32 oplock)
+struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid, struct file *file,
+ struct tcon_link *tlink, __u32 oplock,
+ const char *symlink_target)
{
struct dentry *dentry = file_dentry(file);
struct inode *inode = d_inode(dentry);
@@ -347,6 +338,15 @@ cifs_new_fileinfo(struct cifs_fid *fid, struct file *file,
return NULL;
}
+ if (symlink_target) {
+ cfile->symlink_target = kstrdup(symlink_target, GFP_KERNEL);
+ if (!cfile->symlink_target) {
+ kfree(fdlocks);
+ kfree(cfile);
+ return NULL;
+ }
+ }
+
INIT_LIST_HEAD(&fdlocks->locks);
fdlocks->cfile = cfile;
cfile->llist = fdlocks;
@@ -440,6 +440,7 @@ static void cifsFileInfo_put_final(struct cifsFileInfo *cifs_file)
cifs_put_tlink(cifs_file->tlink);
dput(cifs_file->dentry);
cifs_sb_deactive(sb);
+ kfree(cifs_file->symlink_target);
kfree(cifs_file);
}
@@ -488,7 +489,7 @@ void _cifsFileInfo_put(struct cifsFileInfo *cifs_file,
struct cifsInodeInfo *cifsi = CIFS_I(inode);
struct super_block *sb = inode->i_sb;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
- struct cifs_fid fid;
+ struct cifs_fid fid = {};
struct cifs_pending_open open;
bool oplock_break_cancelled;
@@ -570,8 +571,9 @@ int cifs_open(struct inode *inode, struct file *file)
void *page;
const char *full_path;
bool posix_open_ok = false;
- struct cifs_fid fid;
+ struct cifs_fid fid = {};
struct cifs_pending_open open;
+ struct cifs_open_info_data data = {};
xid = get_xid();
@@ -662,15 +664,15 @@ int cifs_open(struct inode *inode, struct file *file)
if (server->ops->get_lease_key)
server->ops->get_lease_key(inode, &fid);
- rc = cifs_nt_open(full_path, inode, cifs_sb, tcon,
- file->f_flags, &oplock, &fid, xid);
+ rc = cifs_nt_open(full_path, inode, cifs_sb, tcon, file->f_flags, &oplock, &fid,
+ xid, &data);
if (rc) {
cifs_del_pending_open(&open);
goto out;
}
}
- cfile = cifs_new_fileinfo(&fid, file, tlink, oplock);
+ cfile = cifs_new_fileinfo(&fid, file, tlink, oplock, data.symlink_target);
if (cfile == NULL) {
if (server->ops->close)
server->ops->close(xid, tcon, &fid);
@@ -712,6 +714,7 @@ out:
free_dentry_path(page);
free_xid(xid);
cifs_put_tlink(tlink);
+ cifs_free_open_info(&data);
return rc;
}