From abfe1eedd682ea0f20e7035445982e6d371a2024 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Fri, 15 Oct 2010 15:33:58 -0400 Subject: [PATCH] cifs: eliminate the inode argument from cifs_new_fileinfo It already takes a file pointer. The inode associated with that had damn well better be the same one we're passing in anyway. Thus, there's no need for a separate argument here. Also, get rid of the bogus check for a null pCifsInode pointer. The CIFS_I macro uses container_of(), and that will virtually never return a NULL pointer anyway. Finally, move the setting of the canCache* flags outside of the lock. Other places in the code don't hold that lock when setting it, so I assume it's not really needed here either. Signed-off-by: Jeff Layton Reviewed-by: Suresh Jayaraman Acked-by: Dave Kleikamp Signed-off-by: Steve French --- fs/cifs/cifsproto.h | 3 +-- fs/cifs/dir.c | 40 ++++++++++++++++++---------------------- fs/cifs/file.c | 6 +++--- 3 files changed, 22 insertions(+), 27 deletions(-) diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 781676e9cfc3..ca6a0d9130cb 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -105,8 +105,7 @@ extern u64 cifs_UnixTimeToNT(struct timespec); extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time, int offset); -extern struct cifsFileInfo *cifs_new_fileinfo(struct inode *newinode, - __u16 fileHandle, struct file *file, +extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle, struct file *file, struct tcon_link *tlink, __u32 oplock); extern int cifs_posix_open(char *full_path, struct inode **pinode, struct super_block *sb, diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index ce1fa3027b23..36cf3e2ec252 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -131,12 +131,13 @@ build_path_from_dentry(struct dentry *direntry) } struct cifsFileInfo * -cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle, struct file *file, +cifs_new_fileinfo(__u16 fileHandle, struct file *file, struct tcon_link *tlink, __u32 oplock) { struct dentry *dentry = file->f_path.dentry; + struct inode *inode = dentry->d_inode; + struct cifsInodeInfo *pCifsInode = CIFS_I(inode); struct cifsFileInfo *pCifsFile; - struct cifsInodeInfo *pCifsInode; pCifsFile = kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL); if (pCifsFile == NULL) @@ -158,24 +159,20 @@ cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle, struct file *file, write_lock(&GlobalSMBSeslock); list_add(&pCifsFile->tlist, &(tlink_tcon(tlink)->openFileList)); - pCifsInode = CIFS_I(newinode); - if (pCifsInode) { - /* if readable file instance put first in list*/ - if (file->f_mode & FMODE_READ) - list_add(&pCifsFile->flist, &pCifsInode->openFileList); - else - list_add_tail(&pCifsFile->flist, - &pCifsInode->openFileList); - - if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) { - pCifsInode->clientCanCacheAll = true; - pCifsInode->clientCanCacheRead = true; - cFYI(1, "Exclusive Oplock inode %p", newinode); - } else if ((oplock & 0xF) == OPLOCK_READ) - pCifsInode->clientCanCacheRead = true; - } + /* if readable file instance put first in list*/ + if (file->f_mode & FMODE_READ) + list_add(&pCifsFile->flist, &pCifsInode->openFileList); + else + list_add_tail(&pCifsFile->flist, &pCifsInode->openFileList); write_unlock(&GlobalSMBSeslock); + if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) { + pCifsInode->clientCanCacheAll = true; + pCifsInode->clientCanCacheRead = true; + cFYI(1, "Exclusive Oplock inode %p", inode); + } else if ((oplock & 0xF) == OPLOCK_READ) + pCifsInode->clientCanCacheRead = true; + file->private_data = pCifsFile; return pCifsFile; @@ -395,8 +392,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, goto cifs_create_out; } - pfile_info = cifs_new_fileinfo(newinode, fileHandle, filp, - tlink, oplock); + pfile_info = cifs_new_fileinfo(fileHandle, filp, tlink, oplock); if (pfile_info == NULL) { fput(filp); CIFSSMBClose(xid, tcon, fileHandle); @@ -669,8 +665,8 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, goto lookup_out; } - cfile = cifs_new_fileinfo(newInode, fileHandle, filp, - tlink, oplock); + cfile = cifs_new_fileinfo(fileHandle, filp, tlink, + oplock); if (cfile == NULL) { fput(filp); CIFSSMBClose(xid, pTcon, fileHandle); diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 774e3ac1208b..394cf28f080d 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -272,8 +272,8 @@ int cifs_open(struct inode *inode, struct file *file) if (rc == 0) { cFYI(1, "posix open succeeded"); - pCifsFile = cifs_new_fileinfo(inode, netfid, file, - tlink, oplock); + pCifsFile = cifs_new_fileinfo(netfid, file, tlink, + oplock); if (pCifsFile == NULL) { CIFSSMBClose(xid, tcon, netfid); rc = -ENOMEM; @@ -365,7 +365,7 @@ int cifs_open(struct inode *inode, struct file *file) if (rc != 0) goto out; - pCifsFile = cifs_new_fileinfo(inode, netfid, file, tlink, oplock); + pCifsFile = cifs_new_fileinfo(netfid, file, tlink, oplock); if (pCifsFile == NULL) { rc = -ENOMEM; goto out; -- GitLab