simple_setattr

Name:simple_setattr - setattr for simple filesystem*@dentry: dentry*@iattr: iattr structure* Returns 0 on success, -error on failure

Proto:int simple_setattr(struct dentry *dentry, struct iattr *iattr)

Type:int

Parameter:

Type	Parameter	Name
struct dentry *	dentry
struct iattr *	iattr

425

inode = d_inode - Get the actual inode of this dentry*@dentry: The dentry to query* This is the helper normal filesystems should use to get at their own inodes* in their own dentries and ignore the layering superimposed upon them.

428

error = setattr_prepare - check if attribute changes to a dentry are allowed*@dentry: dentry to check*@attr: attributes to change* Check if we are allowed to change the attributes contained in @attr* in the given dentry

429

If error Then Return error

432

If ia_valid & ATTR_SIZE Then runcate_setsize - update inode and pagecache for a new file size*@inode: inode*@newsize: new file size* truncate_setsize updates i_size and performs pagecache truncation (if* necessary) to @newsize. It will be typically be called from the filesystem's

434

setattr_copy - copy simple metadata updates into the generic inode*@inode: the inode to be updated*@attr: the new attributes* setattr_copy must be called with i_mutex held.* setattr_copy updates the inode's metadata with that specified* in attr

435

mark_inode_dirty(inode)

436

Return 0

**Caller**
Name	Describe
notify_change	y_change - modify attributes of a filesytem object@dentry: object affected@attr: new attributes@delegated_inode: returns inode, if the inode is delegated The caller must hold the i_mutex on the affected object

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