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GFS2: Move gfs2_unlink_ok into ops_inode.c

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Another function which is only called from one ops_inode.c so
we move it and make it static.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Steven Whitehouse 2009-05-22 10:54:50 +01:00
parent 536baf02f6
commit 87ec217411
3 changed files with 38 additions and 41 deletions
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39
fs/gfs2/inode.c
View file

@ -1046,45 +1046,6 @@ fail:
return ERR_PTR(error); return ERR_PTR(error);
} }
/*
* gfs2_unlink_ok - check to see that a inode is still in a directory
* @dip: the directory
* @name: the name of the file
* @ip: the inode
*
* Assumes that the lock on (at least) @dip is held.
*
* Returns: 0 if the parent/child relationship is correct, errno if it isn't
*/
int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
const struct gfs2_inode *ip)
{
int error;
if (IS_IMMUTABLE(&ip->i_inode) || IS_APPEND(&ip->i_inode))
return -EPERM;
if ((dip->i_inode.i_mode & S_ISVTX) &&
dip->i_inode.i_uid != current_fsuid() &&
ip->i_inode.i_uid != current_fsuid() && !capable(CAP_FOWNER))
return -EPERM;
if (IS_APPEND(&dip->i_inode))
return -EPERM;
error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC);
if (error)
return error;
error = gfs2_dir_check(&dip->i_inode, name, ip);
if (error)
return error;
return 0;
}
static int __gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr) static int __gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)
{ {
struct buffer_head *dibh; struct buffer_head *dibh;

2
fs/gfs2/inode.h
View file

@ -96,8 +96,6 @@ extern struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
extern struct inode *gfs2_createi(struct gfs2_holder *ghs, extern struct inode *gfs2_createi(struct gfs2_holder *ghs,
const struct qstr *name, const struct qstr *name,
unsigned int mode, dev_t dev); unsigned int mode, dev_t dev);
extern int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
const struct gfs2_inode *ip);
extern int gfs2_permission(struct inode *inode, int mask); extern int gfs2_permission(struct inode *inode, int mask);
extern int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr); extern int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr);
extern struct inode *gfs2_lookup_simple(struct inode *dip, const char *name); extern struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);

38
fs/gfs2/ops_inode.c
View file

@ -262,6 +262,44 @@ out_parent:
return error; return error;
} }
/*
* gfs2_unlink_ok - check to see that a inode is still in a directory
* @dip: the directory
* @name: the name of the file
* @ip: the inode
*
* Assumes that the lock on (at least) @dip is held.
*
* Returns: 0 if the parent/child relationship is correct, errno if it isn't
*/
static int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
const struct gfs2_inode *ip)
{
int error;
if (IS_IMMUTABLE(&ip->i_inode) || IS_APPEND(&ip->i_inode))
return -EPERM;
if ((dip->i_inode.i_mode & S_ISVTX) &&
dip->i_inode.i_uid != current_fsuid() &&
ip->i_inode.i_uid != current_fsuid() && !capable(CAP_FOWNER))
return -EPERM;
if (IS_APPEND(&dip->i_inode))
return -EPERM;
error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC);
if (error)
return error;
error = gfs2_dir_check(&dip->i_inode, name, ip);
if (error)
return error;
return 0;
}
/** /**
* gfs2_unlink - Unlink a file * gfs2_unlink - Unlink a file
* @dir: The inode of the directory containing the file to unlink * @dir: The inode of the directory containing the file to unlink