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| author | Al Viro <viro@zeniv.linux.org.uk> | 2015-12-29 23:58:39 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-12-30 21:01:03 +0300 |
| commit | fceef393a538134f03b778c5d2519e670269342f (patch) | |
| tree | cd43c9afdc07852d286965ad4d11772f6c275d1a /fs/overlayfs/inode.c | |
| parent | cd3417c8fc9504cc1afe944515f338aff9ec286b (diff) | |
| download | linux-fceef393a538134f03b778c5d2519e670269342f.tar.xz | |
switch ->get_link() to delayed_call, kill ->put_link()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/overlayfs/inode.c')
| -rw-r--r-- | fs/overlayfs/inode.c | 45 |
1 files changed, 3 insertions, 42 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 38a0b8b9f8b9..964a60fa7afc 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -131,19 +131,12 @@ out_dput: return err; } - -struct ovl_link_data { - struct dentry *realdentry; - void *cookie; -}; - static const char *ovl_get_link(struct dentry *dentry, - struct inode *inode, void **cookie) + struct inode *inode, + struct delayed_call *done) { struct dentry *realdentry; struct inode *realinode; - struct ovl_link_data *data = NULL; - const char *ret; if (!dentry) return ERR_PTR(-ECHILD); @@ -154,38 +147,7 @@ static const char *ovl_get_link(struct dentry *dentry, if (WARN_ON(!realinode->i_op->get_link)) return ERR_PTR(-EPERM); - if (realinode->i_op->put_link) { - data = kmalloc(sizeof(struct ovl_link_data), GFP_KERNEL); - if (!data) - return ERR_PTR(-ENOMEM); - data->realdentry = realdentry; - } - - ret = realinode->i_op->get_link(realdentry, realinode, cookie); - if (IS_ERR_OR_NULL(ret)) { - kfree(data); - return ret; - } - - if (data) - data->cookie = *cookie; - - *cookie = data; - - return ret; -} - -static void ovl_put_link(struct inode *unused, void *c) -{ - struct inode *realinode; - struct ovl_link_data *data = c; - - if (!data) - return; - - realinode = data->realdentry->d_inode; - realinode->i_op->put_link(realinode, data->cookie); - kfree(data); + return realinode->i_op->get_link(realdentry, realinode, done); } static int ovl_readlink(struct dentry *dentry, char __user *buf, int bufsiz) @@ -383,7 +345,6 @@ static const struct inode_operations ovl_file_inode_operations = { static const struct inode_operations ovl_symlink_inode_operations = { .setattr = ovl_setattr, .get_link = ovl_get_link, - .put_link = ovl_put_link, .readlink = ovl_readlink, .getattr = ovl_getattr, .setxattr = ovl_setxattr, |