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Commit f7a40689 authored by Jeff Layton's avatar Jeff Layton Committed by Steve French
Browse files

cifs: have cifs_new_fileinfo take a tcon arg 



To minimize calls to cifs_sb_tcon and to allow for a clear error path if
a tcon can't be acquired.

Signed-off-by: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
parent 0d424ad0

fs/cifs/cifsproto.h

+2 −2
Original line number Diff line number Diff line
@@ -107,8 +107,8 @@ extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time, 


extern struct cifsFileInfo *cifs_new_fileinfo(struct inode *newinode,

				__u16 fileHandle, struct file *file,

				struct vfsmount *mnt, unsigned int oflags,

				__u32 oplock);

				struct vfsmount *mnt, struct cifsTconInfo *tcon,

				unsigned int oflags, __u32 oplock);

extern int cifs_posix_open(char *full_path, struct inode **pinode,

				struct super_block *sb,

				int mode, int oflags,

fs/cifs/dir.c

+12 −10
Original line number Diff line number Diff line
@@ -131,9 +131,9 @@ build_path_from_dentry(struct dentry *direntry) 
}



struct cifsFileInfo *

cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle,

		  struct file *file, struct vfsmount *mnt, unsigned int oflags,

		  __u32 oplock)

cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle, struct file *file,

		  struct vfsmount *mnt, struct cifsTconInfo *tcon,

		  unsigned int oflags, __u32 oplock)

{

	struct cifsFileInfo *pCifsFile;

	struct cifsInodeInfo *pCifsInode;
@@ -150,7 +150,7 @@ cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle, 
	pCifsFile->pfile = file;

	pCifsFile->invalidHandle = false;

	pCifsFile->closePend = false;

	pCifsFile->tcon = cifs_sb_tcon(cifs_sb);

	pCifsFile->tcon = tcon;

	mutex_init(&pCifsFile->fh_mutex);

	mutex_init(&pCifsFile->lock_mutex);

	INIT_LIST_HEAD(&pCifsFile->llist);
@@ -158,7 +158,7 @@ cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle, 
	INIT_WORK(&pCifsFile->oplock_break, cifs_oplock_break);



	write_lock(&GlobalSMBSeslock);

	list_add(&pCifsFile->tlist, &cifs_sb_tcon(cifs_sb)->openFileList);

	list_add(&pCifsFile->tlist, &tcon->openFileList);

	pCifsInode = CIFS_I(newinode);

	if (pCifsInode) {

		/* if readable file instance put first in list*/
@@ -191,6 +191,7 @@ int cifs_posix_open(char *full_path, struct inode **pinode, 
	__u32 posix_flags = 0;

	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);

	struct cifs_fattr fattr;

	struct cifsTconInfo *tcon = cifs_sb_tcon(cifs_sb);



	cFYI(1, "posix open %s", full_path);
@@ -225,9 +226,9 @@ int cifs_posix_open(char *full_path, struct inode **pinode, 
		posix_flags |= SMB_O_DIRECT;



	mode &= ~current_umask();

	rc = CIFSPOSIXCreate(xid, cifs_sb_tcon(cifs_sb), posix_flags, mode,

			pnetfid, presp_data, poplock, full_path,

			cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &

	rc = CIFSPOSIXCreate(xid, tcon, posix_flags, mode, pnetfid, presp_data,

			     poplock, full_path, cifs_sb->local_nls,

			     cifs_sb->mnt_cifs_flags &

					CIFS_MOUNT_MAP_SPECIAL_CHR);

	if (rc)

		goto posix_open_ret;
@@ -466,7 +467,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, 
		}



		pfile_info = cifs_new_fileinfo(newinode, fileHandle, filp,

					       nd->path.mnt, oflags, oplock);

					       nd->path.mnt, tcon, oflags,

						oplock);

		if (pfile_info == NULL) {

			fput(filp);

			CIFSSMBClose(xid, tcon, fileHandle);
@@ -726,7 +728,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, 
			}



			cfile = cifs_new_fileinfo(newInode, fileHandle, filp,

						  nd->path.mnt,

						  nd->path.mnt, pTcon,

						  nd->intent.open.flags,

						  oplock);

			if (cfile == NULL) {

fs/cifs/file.c

+2 −2
Original line number Diff line number Diff line
@@ -277,7 +277,7 @@ int cifs_open(struct inode *inode, struct file *file) 


			pCifsFile = cifs_new_fileinfo(inode, netfid, file,

							file->f_path.mnt,

							oflags, oplock);

							tcon, oflags, oplock);

			if (pCifsFile == NULL) {

				CIFSSMBClose(xid, tcon, netfid);

				rc = -ENOMEM;
@@ -370,7 +370,7 @@ int cifs_open(struct inode *inode, struct file *file) 
		goto out;



	pCifsFile = cifs_new_fileinfo(inode, netfid, file, file->f_path.mnt,

					file->f_flags, oplock);

					tcon, file->f_flags, oplock);

	if (pCifsFile == NULL) {

		rc = -ENOMEM;

		goto out;