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Diffstat (limited to 'fs/cifs/dir.c')
-rw-r--r--fs/cifs/dir.c93
1 files changed, 60 insertions, 33 deletions
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 6ccf7262d1b7..391816b461ca 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -73,7 +73,7 @@ cifs_bp_rename_retry:
namelen += (1 + temp->d_name.len);
temp = temp->d_parent;
if (temp == NULL) {
- cERROR(1, ("corrupt dentry"));
+ cERROR(1, "corrupt dentry");
return NULL;
}
}
@@ -90,19 +90,18 @@ cifs_bp_rename_retry:
full_path[namelen] = dirsep;
strncpy(full_path + namelen + 1, temp->d_name.name,
temp->d_name.len);
- cFYI(0, ("name: %s", full_path + namelen));
+ cFYI(0, "name: %s", full_path + namelen);
}
temp = temp->d_parent;
if (temp == NULL) {
- cERROR(1, ("corrupt dentry"));
+ cERROR(1, "corrupt dentry");
kfree(full_path);
return NULL;
}
}
if (namelen != pplen + dfsplen) {
- cERROR(1,
- ("did not end path lookup where expected namelen is %d",
- namelen));
+ cERROR(1, "did not end path lookup where expected namelen is %d",
+ namelen);
/* presumably this is only possible if racing with a rename
of one of the parent directories (we can not lock the dentries
above us to prevent this, but retrying should be harmless) */
@@ -130,6 +129,12 @@ cifs_bp_rename_retry:
return full_path;
}
+/*
+ * When called with struct file pointer set to NULL, there is no way we could
+ * update file->private_data, but getting it stuck on openFileList provides a
+ * way to access it from cifs_fill_filedata and thereby set file->private_data
+ * from cifs_open.
+ */
struct cifsFileInfo *
cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle,
struct file *file, struct vfsmount *mnt, unsigned int oflags)
@@ -173,7 +178,7 @@ cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle,
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = true;
pCifsInode->clientCanCacheRead = true;
- cFYI(1, ("Exclusive Oplock inode %p", newinode));
+ cFYI(1, "Exclusive Oplock inode %p", newinode);
} else if ((oplock & 0xF) == OPLOCK_READ)
pCifsInode->clientCanCacheRead = true;
}
@@ -183,16 +188,17 @@ cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle,
}
int cifs_posix_open(char *full_path, struct inode **pinode,
- struct vfsmount *mnt, int mode, int oflags,
- __u32 *poplock, __u16 *pnetfid, int xid)
+ struct vfsmount *mnt, struct super_block *sb,
+ int mode, int oflags,
+ __u32 *poplock, __u16 *pnetfid, int xid)
{
int rc;
FILE_UNIX_BASIC_INFO *presp_data;
__u32 posix_flags = 0;
- struct cifs_sb_info *cifs_sb = CIFS_SB(mnt->mnt_sb);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
struct cifs_fattr fattr;
- cFYI(1, ("posix open %s", full_path));
+ cFYI(1, "posix open %s", full_path);
presp_data = kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL);
if (presp_data == NULL)
@@ -242,7 +248,8 @@ int cifs_posix_open(char *full_path, struct inode **pinode,
/* get new inode and set it up */
if (*pinode == NULL) {
- *pinode = cifs_iget(mnt->mnt_sb, &fattr);
+ cifs_fill_uniqueid(sb, &fattr);
+ *pinode = cifs_iget(sb, &fattr);
if (!*pinode) {
rc = -ENOMEM;
goto posix_open_ret;
@@ -251,7 +258,18 @@ int cifs_posix_open(char *full_path, struct inode **pinode,
cifs_fattr_to_inode(*pinode, &fattr);
}
- cifs_new_fileinfo(*pinode, *pnetfid, NULL, mnt, oflags);
+ /*
+ * cifs_fill_filedata() takes care of setting cifsFileInfo pointer to
+ * file->private_data.
+ */
+ if (mnt) {
+ struct cifsFileInfo *pfile_info;
+
+ pfile_info = cifs_new_fileinfo(*pinode, *pnetfid, NULL, mnt,
+ oflags);
+ if (pfile_info == NULL)
+ rc = -ENOMEM;
+ }
posix_open_ret:
kfree(presp_data);
@@ -315,13 +333,14 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
if (nd && (nd->flags & LOOKUP_OPEN))
oflags = nd->intent.open.flags;
else
- oflags = FMODE_READ;
+ oflags = FMODE_READ | SMB_O_CREAT;
if (tcon->unix_ext && (tcon->ses->capabilities & CAP_UNIX) &&
(CIFS_UNIX_POSIX_PATH_OPS_CAP &
le64_to_cpu(tcon->fsUnixInfo.Capability))) {
- rc = cifs_posix_open(full_path, &newinode, nd->path.mnt,
- mode, oflags, &oplock, &fileHandle, xid);
+ rc = cifs_posix_open(full_path, &newinode,
+ nd ? nd->path.mnt : NULL,
+ inode->i_sb, mode, oflags, &oplock, &fileHandle, xid);
/* EIO could indicate that (posix open) operation is not
supported, despite what server claimed in capability
negotation. EREMOTE indicates DFS junction, which is not
@@ -358,7 +377,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
else if ((oflags & O_CREAT) == O_CREAT)
disposition = FILE_OPEN_IF;
else
- cFYI(1, ("Create flag not set in create function"));
+ cFYI(1, "Create flag not set in create function");
}
/* BB add processing to set equivalent of mode - e.g. via CreateX with
@@ -394,7 +413,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
}
if (rc) {
- cFYI(1, ("cifs_create returned 0x%x", rc));
+ cFYI(1, "cifs_create returned 0x%x", rc);
goto cifs_create_out;
}
@@ -457,15 +476,22 @@ cifs_create_set_dentry:
if (rc == 0)
setup_cifs_dentry(tcon, direntry, newinode);
else
- cFYI(1, ("Create worked, get_inode_info failed rc = %d", rc));
+ cFYI(1, "Create worked, get_inode_info failed rc = %d", rc);
/* nfsd case - nfs srv does not set nd */
if ((nd == NULL) || (!(nd->flags & LOOKUP_OPEN))) {
/* mknod case - do not leave file open */
CIFSSMBClose(xid, tcon, fileHandle);
} else if (!(posix_create) && (newinode)) {
- cifs_new_fileinfo(newinode, fileHandle, NULL,
- nd->path.mnt, oflags);
+ struct cifsFileInfo *pfile_info;
+ /*
+ * cifs_fill_filedata() takes care of setting cifsFileInfo
+ * pointer to file->private_data.
+ */
+ pfile_info = cifs_new_fileinfo(newinode, fileHandle, NULL,
+ nd->path.mnt, oflags);
+ if (pfile_info == NULL)
+ rc = -ENOMEM;
}
cifs_create_out:
kfree(buf);
@@ -531,7 +557,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
u16 fileHandle;
FILE_ALL_INFO *buf;
- cFYI(1, ("sfu compat create special file"));
+ cFYI(1, "sfu compat create special file");
buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
if (buf == NULL) {
@@ -616,8 +642,8 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
xid = GetXid();
- cFYI(1, ("parent inode = 0x%p name is: %s and dentry = 0x%p",
- parent_dir_inode, direntry->d_name.name, direntry));
+ cFYI(1, "parent inode = 0x%p name is: %s and dentry = 0x%p",
+ parent_dir_inode, direntry->d_name.name, direntry);
/* check whether path exists */
@@ -632,7 +658,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
int i;
for (i = 0; i < direntry->d_name.len; i++)
if (direntry->d_name.name[i] == '\\') {
- cFYI(1, ("Invalid file name"));
+ cFYI(1, "Invalid file name");
FreeXid(xid);
return ERR_PTR(-EINVAL);
}
@@ -657,11 +683,11 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
}
if (direntry->d_inode != NULL) {
- cFYI(1, ("non-NULL inode in lookup"));
+ cFYI(1, "non-NULL inode in lookup");
} else {
- cFYI(1, ("NULL inode in lookup"));
+ cFYI(1, "NULL inode in lookup");
}
- cFYI(1, ("Full path: %s inode = 0x%p", full_path, direntry->d_inode));
+ cFYI(1, "Full path: %s inode = 0x%p", full_path, direntry->d_inode);
/* Posix open is only called (at lookup time) for file create now.
* For opens (rather than creates), because we do not know if it
@@ -678,6 +704,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
(nd->flags & LOOKUP_OPEN) && !pTcon->broken_posix_open &&
(nd->intent.open.flags & O_CREAT)) {
rc = cifs_posix_open(full_path, &newInode, nd->path.mnt,
+ parent_dir_inode->i_sb,
nd->intent.open.create_mode,
nd->intent.open.flags, &oplock,
&fileHandle, xid);
@@ -723,7 +750,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
/* if it was once a directory (but how can we tell?) we could do
shrink_dcache_parent(direntry); */
} else if (rc != -EACCES) {
- cERROR(1, ("Unexpected lookup error %d", rc));
+ cERROR(1, "Unexpected lookup error %d", rc);
/* We special case check for Access Denied - since that
is a common return code */
}
@@ -739,11 +766,11 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
int isValid = 1;
if (direntry->d_inode) {
- if (cifs_revalidate(direntry))
+ if (cifs_revalidate_dentry(direntry))
return 0;
} else {
- cFYI(1, ("neg dentry 0x%p name = %s",
- direntry, direntry->d_name.name));
+ cFYI(1, "neg dentry 0x%p name = %s",
+ direntry, direntry->d_name.name);
if (time_after(jiffies, direntry->d_time + HZ) ||
!lookupCacheEnabled) {
d_drop(direntry);
@@ -758,7 +785,7 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
{
int rc = 0;
- cFYI(1, ("In cifs d_delete, name = %s", direntry->d_name.name));
+ cFYI(1, "In cifs d_delete, name = %s", direntry->d_name.name);
return rc;
} */
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-04 19:37:36 +0300