fs/ocfs2/namei.c

96 static struct dentry *ocfs2_lookup(struct inode *dir, struct dentry *dentry,
102 	struct dentry *ret;
105 	trace_ocfs2_lookup(dir, dentry, dentry->d_name.len,
106 			   dentry->d_name.name,
109 	if (dentry->d_name.len > OCFS2_MAX_FILENAME_LEN) {
122 	status = ocfs2_lookup_ino_from_name(dir, dentry->d_name.name,
123 					    dentry->d_name.len, &blkno);
144 	ret = d_splice_alias(inode, dentry);
149 		 * dentry, it will d_move() it on top of ourse. The
154 		 * NOTE: This dentry already has ->d_op set from
158 			dentry = ret;
160 		status = ocfs2_dentry_attach_lock(dentry, inode,
168 		ocfs2_dentry_attach_gen(dentry);
173 	 * dentry under this lock so otherwise we can race this with
174 	 * the downconvert thread and have a stale dentry. */
210 		struct dentry *dentry, struct inode *inode)
212 	struct ocfs2_dentry_lock *dl = dentry->d_fsdata;
218 	dentry->d_fsdata = NULL;
226 		       struct dentry *dentry,
254 	trace_ocfs2_mknod(dir, dentry, dentry->d_name.len, dentry->d_name.name,
286 	status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
287 					   dentry->d_name.len);
293 					      dentry->d_name.name,
294 					      dentry->d_name.len, &lookup);
317 	status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si);
428 	 * the dentry lock even if ocfs2_add_entry() fails below.
430 	status = ocfs2_dentry_attach_lock(dentry, inode,
437 	dl = dentry->d_fsdata;
439 	status = ocfs2_add_entry(handle, dentry, inode,
448 	d_instantiate(dentry, inode);
492 			ocfs2_cleanup_add_entry_failure(osb, dentry, inode);
648 		       struct dentry *dentry,
653 	trace_ocfs2_mkdir(dir, dentry, dentry->d_name.len, dentry->d_name.name,
655 	ret = ocfs2_mknod(&nop_mnt_idmap, dir, dentry, mode | S_IFDIR, 0);
664 			struct dentry *dentry,
670 	trace_ocfs2_create(dir, dentry, dentry->d_name.len, dentry->d_name.name,
672 	ret = ocfs2_mknod(&nop_mnt_idmap, dir, dentry, mode | S_IFREG, 0);
679 static int ocfs2_link(struct dentry *old_dentry,
681 		      struct dentry *dentry)
698 			 dentry->d_name.len, dentry->d_name.name);
751 	err = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
752 					dentry->d_name.len);
757 					   dentry->d_name.name,
758 					   dentry->d_name.len, &lookup);
803 	err = ocfs2_add_entry(handle, dentry, inode,
813 	err = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno);
820 	d_instantiate(dentry, inode);
844  * Takes and drops an exclusive lock on the given dentry. This will
847 static int ocfs2_remote_dentry_delete(struct dentry *dentry)
851 	ret = ocfs2_dentry_lock(dentry, 1);
855 		ocfs2_dentry_unlock(dentry, 1);
874 			struct dentry *dentry)
879 	struct inode *inode = d_inode(dentry);
891 	trace_ocfs2_unlink(dir, dentry, dentry->d_name.len,
892 			   dentry->d_name.name,
902 	BUG_ON(d_inode(dentry->d_parent) != dir);
915 	status = ocfs2_find_files_on_disk(dentry->d_name.name,
916 					  dentry->d_name.len, &blkno, dir,
949 	status = ocfs2_remote_dentry_delete(dentry);
1202 			struct dentry *old_dentry,
1204 			struct dentry *new_dentry,
1324 	 * dentry locks.
1807 			 struct dentry *dentry,
1835 	trace_ocfs2_symlink_begin(dir, dentry, symname,
1836 				  dentry->d_name.len, dentry->d_name.name);
1866 	status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
1867 					   dentry->d_name.len);
1872 					      dentry->d_name.name,
1873 					      dentry->d_name.len, &lookup);
1895 	status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si);
1943 	trace_ocfs2_symlink_create(dir, dentry, dentry->d_name.len,
1944 				   dentry->d_name.name,
2020 	 * the dentry lock even if ocfs2_add_entry() fails below.
2022 	status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno);
2028 	dl = dentry->d_fsdata;
2030 	status = ocfs2_add_entry(handle, dentry, inode,
2039 	d_instantiate(dentry, inode);
2068 			ocfs2_cleanup_add_entry_failure(osb, dentry, inode);
2783 				   struct dentry *dentry)
2795 	trace_ocfs2_mv_orphaned_inode_to_new(dir, dentry,
2796 				dentry->d_name.len, dentry->d_name.name,
2814 	status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
2815 					   dentry->d_name.len);
2821 					      dentry->d_name.name,
2822 					      dentry->d_name.len, &lookup);
2883 	status = ocfs2_add_entry(handle, dentry, inode,
2891 	status = ocfs2_dentry_attach_lock(dentry, inode,
2898 	d_instantiate(dentry, inode);