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don't pass nameidata to ->create() 

boolean "does it have to be exclusive?" flag is passed instead;
Local filesystem should just ignore it - the object is guaranteed
not to be there yet.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-06-10 18:05:36 -04:00
parent 72bd866a01
commit ebfc3b49a7
51 changed files with 62 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/filesystems/Locking
View File

@ -37,7 +37,7 @@ d_manage: no no yes (ref-walk) maybe
--------------------------- inode_operations ---------------------------
prototypes:
int (*create) (struct inode *,struct dentry *,umode_t, struct nameidata *);
int (*create) (struct inode *,struct dentry *,umode_t, bool);
struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
int (*link) (struct dentry *,struct inode *,struct dentry *);
int (*unlink) (struct inode *,struct dentry *);

6
Documentation/filesystems/porting
View File

@ -436,3 +436,9 @@ d_make_root() drops the reference to inode if dentry allocation fails.
[mandatory]
The witch is dead! Well, 2/3 of it, anyway. ->d_revalidate() and
->lookup() do *not* take struct nameidata anymore; just the flags.
--
[mandatory]
->create() doesn't take struct nameidata *; unlike the previous
two, it gets "is it an O_EXCL or equivalent?" boolean argument. Note that
local filesystems can ignore tha argument - they are guaranteed that the
object doesn't exist. It's remote/distributed ones that might care...

2
Documentation/filesystems/vfs.txt
View File

@ -341,7 +341,7 @@ This describes how the VFS can manipulate an inode in your
filesystem. As of kernel 2.6.22, the following members are defined:
struct inode_operations {
int (*create) (struct inode *,struct dentry *, umode_t, struct nameidata *);
int (*create) (struct inode *,struct dentry *, umode_t, bool);
struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
int (*link) (struct dentry *,struct inode *,struct dentry *);
int (*unlink) (struct inode *,struct dentry *);

2
fs/9p/vfs_inode.c
View File

@ -725,7 +725,7 @@ error:
static int
v9fs_vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir);
u32 perm = unixmode2p9mode(v9ses, mode);

2
fs/9p/vfs_inode_dotl.c
View File

@ -235,7 +235,7 @@ int v9fs_open_to_dotl_flags(int flags)
static int
v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
struct nameidata *nd)
bool excl)
{
return v9fs_vfs_mknod_dotl(dir, dentry, omode, 0);
}

2
fs/affs/affs.h
View File

@ -155,7 +155,7 @@ extern void affs_free_bitmap(struct super_block *sb);
extern int affs_hash_name(struct super_block *sb, const u8 *name, unsigned int len);
extern struct dentry *affs_lookup(struct inode *dir, struct dentry *dentry, unsigned int);
extern int affs_unlink(struct inode *dir, struct dentry *dentry);
extern int affs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *);
extern int affs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool);
extern int affs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
extern int affs_rmdir(struct inode *dir, struct dentry *dentry);
extern int affs_link(struct dentry *olddentry, struct inode *dir,

2
fs/affs/namei.c
View File

@ -255,7 +255,7 @@ affs_unlink(struct inode *dir, struct dentry *dentry)
}
int
affs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *nd)
affs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool excl)
{
struct super_block *sb = dir->i_sb;
struct inode *inode;

4
fs/afs/dir.c
View File

@ -29,7 +29,7 @@ static void afs_d_release(struct dentry *dentry);
static int afs_lookup_filldir(void *_cookie, const char *name, int nlen,
loff_t fpos, u64 ino, unsigned dtype);
static int afs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd);
bool excl);
static int afs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
static int afs_rmdir(struct inode *dir, struct dentry *dentry);
static int afs_unlink(struct inode *dir, struct dentry *dentry);
@ -949,7 +949,7 @@ error:
* create a regular file on an AFS filesystem
*/
static int afs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct afs_file_status status;
struct afs_callback cb;

2
fs/bad_inode.c
View File

@ -173,7 +173,7 @@ static const struct file_operations bad_file_ops =
};
static int bad_inode_create (struct inode *dir, struct dentry *dentry,
umode_t mode, struct nameidata *nd)
umode_t mode, bool excl)
{
return -EIO;
}

2
fs/bfs/dir.c
View File

@ -85,7 +85,7 @@ const struct file_operations bfs_dir_operations = {
extern void dump_imap(const char *, struct super_block *);
static int bfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
int err;
struct inode *inode;

2
fs/btrfs/inode.c
View File

@ -4893,7 +4893,7 @@ out_unlock:
}
static int btrfs_create(struct inode *dir, struct dentry *dentry,
umode_t mode, struct nameidata *nd)
umode_t mode, bool excl)
{
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(dir)->root;

2
fs/ceph/dir.c
View File

@ -730,7 +730,7 @@ static int ceph_mknod(struct inode *dir, struct dentry *dentry,
}
static int ceph_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
return ceph_mknod(dir, dentry, mode, 0);
}

2
fs/cifs/cifsfs.h
View File

@ -45,7 +45,7 @@ extern const struct address_space_operations cifs_addr_ops_smallbuf;
extern const struct inode_operations cifs_dir_inode_ops;
extern struct inode *cifs_root_iget(struct super_block *);
extern int cifs_create(struct inode *, struct dentry *, umode_t,
struct nameidata *);
bool excl);
extern int cifs_atomic_open(struct inode *, struct dentry *,
struct file *, unsigned, umode_t,
int *);

2
fs/cifs/dir.c
View File

@ -451,7 +451,7 @@ free_xid:
}
int cifs_create(struct inode *inode, struct dentry *direntry, umode_t mode,
struct nameidata *nd)
bool excl)
{
int rc;
int xid = GetXid();

4
fs/coda/dir.c
View File

@ -30,7 +30,7 @@
#include "coda_int.h"
/* dir inode-ops */
static int coda_create(struct inode *dir, struct dentry *new, umode_t mode, struct nameidata *nd);
static int coda_create(struct inode *dir, struct dentry *new, umode_t mode, bool excl);
static struct dentry *coda_lookup(struct inode *dir, struct dentry *target, unsigned int flags);
static int coda_link(struct dentry *old_dentry, struct inode *dir_inode,
struct dentry *entry);
@ -188,7 +188,7 @@ static inline void coda_dir_drop_nlink(struct inode *dir)
}
/* creation routines: create, mknod, mkdir, link, symlink */
static int coda_create(struct inode *dir, struct dentry *de, umode_t mode, struct nameidata *nd)
static int coda_create(struct inode *dir, struct dentry *de, umode_t mode, bool excl)
{
int error;
const char *name=de->d_name.name;

3
fs/ecryptfs/inode.c
View File

@ -240,7 +240,6 @@ out:
* @dir: The inode of the directory in which to create the file.
* @dentry: The eCryptfs dentry
* @mode: The mode of the new file.
* @nd: nameidata
*
* Creates a new file.
*
@ -248,7 +247,7 @@ out:
*/
static int
ecryptfs_create(struct inode *directory_inode, struct dentry *ecryptfs_dentry,
umode_t mode, struct nameidata *nd)
umode_t mode, bool excl)
{
struct inode *ecryptfs_inode;
int rc;

2
fs/exofs/namei.c
View File

@ -60,7 +60,7 @@ static struct dentry *exofs_lookup(struct inode *dir, struct dentry *dentry,
}
static int exofs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct inode *inode = exofs_new_inode(dir, mode);
int err = PTR_ERR(inode);

2
fs/ext2/namei.c
View File

@ -94,7 +94,7 @@ struct dentry *ext2_get_parent(struct dentry *child)
* If the create succeeds, we fill in the inode information
* with d_instantiate().
*/
static int ext2_create (struct inode * dir, struct dentry * dentry, umode_t mode, struct nameidata *nd)
static int ext2_create (struct inode * dir, struct dentry * dentry, umode_t mode, bool excl)
{
struct inode *inode;

2
fs/ext3/namei.c
View File

@ -1690,7 +1690,7 @@ static int ext3_add_nondir(handle_t *handle,
* with d_instantiate().
*/
static int ext3_create (struct inode * dir, struct dentry * dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
handle_t *handle;
struct inode * inode;

2
fs/ext4/namei.c
View File

@ -2091,7 +2091,7 @@ static int ext4_add_nondir(handle_t *handle,
* with d_instantiate().
*/
static int ext4_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
handle_t *handle;
struct inode *inode;

2
fs/fat/namei_msdos.c
View File

@ -265,7 +265,7 @@ static int msdos_add_entry(struct inode *dir, const unsigned char *name,
/***** Create a file */
static int msdos_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct super_block *sb = dir->i_sb;
struct inode *inode = NULL;

2
fs/fat/namei_vfat.c
View File

@ -772,7 +772,7 @@ error:
}
static int vfat_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct super_block *sb = dir->i_sb;
struct inode *inode;

2
fs/fuse/dir.c
View File

@ -611,7 +611,7 @@ static int fuse_mknod(struct inode *dir, struct dentry *entry, umode_t mode,
}
static int fuse_create(struct inode *dir, struct dentry *entry, umode_t mode,
struct nameidata *nd)
bool excl)
{
return fuse_mknod(dir, entry, mode, 0);
}

5
fs/gfs2/inode.c
View File

@ -755,11 +755,8 @@ fail:
*/
static int gfs2_create(struct inode *dir, struct dentry *dentry,
umode_t mode, struct nameidata *nd)
umode_t mode, bool excl)
{
int excl = 0;
if (nd && (nd->flags & LOOKUP_EXCL))
excl = 1;
return gfs2_create_inode(dir, dentry, S_IFREG | mode, 0, NULL, 0, excl);
}

2
fs/hfs/dir.c
View File

@ -187,7 +187,7 @@ static int hfs_dir_release(struct inode *inode, struct file *file)
* the directory and the name (and its length) of the new file.
*/
static int hfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct inode *inode;
int res;

2
fs/hfsplus/dir.c
View File

@ -465,7 +465,7 @@ out:
}
static int hfsplus_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
return hfsplus_mknod(dir, dentry, mode, 0);
}

2
fs/hostfs/hostfs_kern.c
View File

@ -553,7 +553,7 @@ static int read_name(struct inode *ino, char *name)
}
int hostfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct inode *inode;
char *name;

2
fs/hpfs/namei.c
View File

@ -115,7 +115,7 @@ bail:
return err;
}
static int hpfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *nd)
static int hpfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool excl)
{
const unsigned char *name = dentry->d_name.name;
unsigned len = dentry->d_name.len;

2
fs/hugetlbfs/inode.c
View File

@ -565,7 +565,7 @@ static int hugetlbfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mod
return retval;
}
static int hugetlbfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *nd)
static int hugetlbfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool excl)
{
return hugetlbfs_mknod(dir, dentry, mode | S_IFREG, 0);
}

4
fs/jffs2/dir.c
View File

@ -25,7 +25,7 @@
static int jffs2_readdir (struct file *, void *, filldir_t);
static int jffs2_create (struct inode *,struct dentry *,umode_t,
struct nameidata *);
bool);
static struct dentry *jffs2_lookup (struct inode *,struct dentry *,
unsigned int);
static int jffs2_link (struct dentry *,struct inode *,struct dentry *);
@ -175,7 +175,7 @@ static int jffs2_readdir(struct file *filp, void *dirent, filldir_t filldir)
static int jffs2_create(struct inode *dir_i, struct dentry *dentry,
umode_t mode, struct nameidata *nd)
umode_t mode, bool excl)
{
struct jffs2_raw_inode *ri;
struct jffs2_inode_info *f, *dir_f;

2
fs/jfs/namei.c
View File

@ -73,7 +73,7 @@ static inline void free_ea_wmap(struct inode *inode)
*
*/
static int jfs_create(struct inode *dip, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
int rc = 0;
tid_t tid; /* transaction id */

2
fs/logfs/dir.c
View File

@ -502,7 +502,7 @@ static int logfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
}
static int logfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct inode *inode;

2
fs/minix/namei.c
View File

@ -55,7 +55,7 @@ static int minix_mknod(struct inode * dir, struct dentry *dentry, umode_t mode,
}
static int minix_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
return minix_mknod(dir, dentry, mode, 0);
}

3
fs/namei.c
View File

@ -2082,7 +2082,6 @@ int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
{
int error = may_create(dir, dentry);
if (error)
return error;
@ -2093,7 +2092,7 @@ int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
error = security_inode_create(dir, dentry, mode);
if (error)
return error;
error = dir->i_op->create(dir, dentry, mode, nd);
error = dir->i_op->create(dir, dentry, mode, !nd || (nd->flags & LOOKUP_EXCL));
if (!error)
fsnotify_create(dir, dentry);
return error;

4
fs/ncpfs/dir.c
View File

@ -30,7 +30,7 @@ static void ncp_do_readdir(struct file *, void *, filldir_t,
static int ncp_readdir(struct file *, void *, filldir_t);
static int ncp_create(struct inode *, struct dentry *, umode_t, struct nameidata *);
static int ncp_create(struct inode *, struct dentry *, umode_t, bool);
static struct dentry *ncp_lookup(struct inode *, struct dentry *, unsigned int);
static int ncp_unlink(struct inode *, struct dentry *);
static int ncp_mkdir(struct inode *, struct dentry *, umode_t);
@ -980,7 +980,7 @@ out:
}
static int ncp_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
return ncp_create_new(dir, dentry, mode, 0, 0);
}

9
fs/nfs/dir.c
View File

@ -47,7 +47,7 @@ static int nfs_opendir(struct inode *, struct file *);
static int nfs_closedir(struct inode *, struct file *);
static int nfs_readdir(struct file *, void *, filldir_t);
static struct dentry *nfs_lookup(struct inode *, struct dentry *, unsigned int);
static int nfs_create(struct inode *, struct dentry *, umode_t, struct nameidata *);
static int nfs_create(struct inode *, struct dentry *, umode_t, bool);
static int nfs_mkdir(struct inode *, struct dentry *, umode_t);
static int nfs_rmdir(struct inode *, struct dentry *);
static int nfs_unlink(struct inode *, struct dentry *);
@ -1589,11 +1589,11 @@ out_error:
* reply path made it appear to have failed.
*/
static int nfs_create(struct inode *dir, struct dentry *dentry,
umode_t mode, struct nameidata *nd)
umode_t mode, bool excl)
{
struct iattr attr;
int open_flags = excl ? O_CREAT | O_EXCL : O_CREAT;
int error;
int open_flags = O_CREAT|O_EXCL;
dfprintk(VFS, "NFS: create(%s/%ld), %s\n",
dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
@ -1601,9 +1601,6 @@ static int nfs_create(struct inode *dir, struct dentry *dentry,
attr.ia_mode = mode;
attr.ia_valid = ATTR_MODE;
if (nd && !(nd->flags & LOOKUP_EXCL))
open_flags = O_CREAT;
error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags);
if (error != 0)
goto out_err;

2
fs/nilfs2/namei.c
View File

@ -85,7 +85,7 @@ nilfs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
* with d_instantiate().
*/
static int nilfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct inode *inode;
struct nilfs_transaction_info ti;

2
fs/ocfs2/dlmfs/dlmfs.c
View File

@ -526,7 +526,7 @@ bail:
static int dlmfs_create(struct inode *dir,
struct dentry *dentry,
umode_t mode,
struct nameidata *nd)
bool excl)
{
int status = 0;
struct inode *inode;

2
fs/ocfs2/namei.c
View File

@ -618,7 +618,7 @@ static int ocfs2_mkdir(struct inode *dir,
static int ocfs2_create(struct inode *dir,
struct dentry *dentry,
umode_t mode,
struct nameidata *nd)
bool excl)
{
int ret;

2
fs/omfs/dir.c
View File

@ -285,7 +285,7 @@ static int omfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
}
static int omfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
return omfs_add_node(dir, dentry, mode | S_IFREG);
}

2
fs/ramfs/inode.c
View File

@ -114,7 +114,7 @@ static int ramfs_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
return retval;
}
static int ramfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, struct nameidata *nd)
static int ramfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool excl)
{
return ramfs_mknod(dir, dentry, mode | S_IFREG, 0);
}

2
fs/reiserfs/namei.c
View File

@ -573,7 +573,7 @@ static int new_inode_init(struct inode *inode, struct inode *dir, umode_t mode)
}
static int reiserfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
int retval;
struct inode *inode;

2
fs/reiserfs/xattr.c
View File

@ -62,7 +62,7 @@
static int xattr_create(struct inode *dir, struct dentry *dentry, int mode)
{
BUG_ON(!mutex_is_locked(&dir->i_mutex));
return dir->i_op->create(dir, dentry, mode, NULL);
return dir->i_op->create(dir, dentry, mode, true);
}
#endif

2
fs/sysv/namei.c
View File

@ -80,7 +80,7 @@ static int sysv_mknod(struct inode * dir, struct dentry * dentry, umode_t mode,
return err;
}
static int sysv_create(struct inode * dir, struct dentry * dentry, umode_t mode, struct nameidata *nd)
static int sysv_create(struct inode * dir, struct dentry * dentry, umode_t mode, bool excl)
{
return sysv_mknod(dir, dentry, mode, 0);
}

2
fs/ubifs/dir.c
View File

@ -246,7 +246,7 @@ out:
}
static int ubifs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct inode *inode;
struct ubifs_info *c = dir->i_sb->s_fs_info;

2
fs/udf/namei.c
View File

@ -551,7 +551,7 @@ static int udf_delete_entry(struct inode *inode, struct fileIdentDesc *fi,
}
static int udf_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct udf_fileident_bh fibh;
struct inode *inode;

2
fs/ufs/namei.c
View File

@ -71,7 +71,7 @@ static struct dentry *ufs_lookup(struct inode * dir, struct dentry *dentry, unsi
* with d_instantiate().
*/
static int ufs_create (struct inode * dir, struct dentry * dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
struct inode *inode;
int err;

2
fs/xfs/xfs_iops.c
View File

@ -179,7 +179,7 @@ xfs_vn_create(
struct inode *dir,
struct dentry *dentry,
umode_t mode,
struct nameidata *nd)
bool flags)
{
return xfs_vn_mknod(dir, dentry, mode, 0);
}

2
include/linux/fs.h
View File

@ -1674,7 +1674,7 @@ struct inode_operations {
int (*readlink) (struct dentry *, char __user *,int);
void (*put_link) (struct dentry *, struct nameidata *, void *);
int (*create) (struct inode *,struct dentry *,umode_t,struct nameidata *);
int (*create) (struct inode *,struct dentry *, umode_t, bool);
int (*link) (struct dentry *,struct inode *,struct dentry *);
int (*unlink) (struct inode *,struct dentry *);
int (*symlink) (struct inode *,struct dentry *,const char *);

2
ipc/mqueue.c
View File

@ -413,7 +413,7 @@ static void mqueue_evict_inode(struct inode *inode)
}
static int mqueue_create(struct inode *dir, struct dentry *dentry,
umode_t mode, struct nameidata *nd)
umode_t mode, bool excl)
{
struct inode *inode;
struct mq_attr *attr = dentry->d_fsdata;

2
mm/shmem.c
View File

@ -1877,7 +1877,7 @@ static int shmem_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
}
static int shmem_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct nameidata *nd)
bool excl)
{
return shmem_mknod(dir, dentry, mode | S_IFREG, 0);
}