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ocfs2: implement i_op->permission

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Implement .permission() in ocfs2_file_iops, ocfs2_special_file_iops and
ocfs2_dir_iops.

This helps us avoid some multi-node races with mode change and vfs
operations.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Tiger Yang
2006-11-27 09:59:21 +08:00
committed by Mark Fasheh
parent 58d206c2fa
commit d38eb8db6a
3 changed files with 27 additions and 0 deletions
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24
fs/ocfs2/file.c
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@@ -945,6 +945,28 @@ bail:
return err;
}
int ocfs2_permission(struct inode *inode, int mask, struct nameidata *nd)
{
int ret;
mlog_entry_void();
ret = ocfs2_meta_lock(inode, NULL, 0);
if (ret) {
mlog_errno(ret);
goto out;
}
ret = generic_permission(inode, mask, NULL);
if (ret)
mlog_errno(ret);
ocfs2_meta_unlock(inode, 0);
out:
mlog_exit(ret);
return ret;
}
static int ocfs2_write_remove_suid(struct inode *inode)
{
int ret;
@@ -1329,11 +1351,13 @@ bail:
struct inode_operations ocfs2_file_iops = {
.setattr = ocfs2_setattr,
.getattr = ocfs2_getattr,
.permission = ocfs2_permission,
};
struct inode_operations ocfs2_special_file_iops = {
.setattr = ocfs2_setattr,
.getattr = ocfs2_getattr,
.permission = ocfs2_permission,
};
const struct file_operations ocfs2_fops = {