diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2018-07-19 17:35:51 -0400 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-07-19 17:35:51 -0400 |
commit | f2df5da66262f429cbb0d5da0e72ada6a6345f28 (patch) | |
tree | fc8fd9d0e8d1ff054167bb147ab4734659a58271 /fs/namei.c | |
parent | 69448867abcb231afaa7891ff9d9fd04b2b94a0d (diff) | |
download | linux-f2df5da66262f429cbb0d5da0e72ada6a6345f28.tar.bz2 |
fold generic_readlink() into its only caller
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
-rw-r--r-- | fs/namei.c | 36 |
1 files changed, 12 insertions, 24 deletions
diff --git a/fs/namei.c b/fs/namei.c index 734cef54fdf8..bb6c6e4f59e2 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -4712,29 +4712,6 @@ out: return len; } -/* - * A helper for ->readlink(). This should be used *ONLY* for symlinks that - * have ->get_link() not calling nd_jump_link(). Using (or not using) it - * for any given inode is up to filesystem. - */ -static int generic_readlink(struct dentry *dentry, char __user *buffer, - int buflen) -{ - DEFINE_DELAYED_CALL(done); - struct inode *inode = d_inode(dentry); - const char *link = inode->i_link; - int res; - - if (!link) { - link = inode->i_op->get_link(dentry, inode, &done); - if (IS_ERR(link)) - return PTR_ERR(link); - } - res = readlink_copy(buffer, buflen, link); - do_delayed_call(&done); - return res; -} - /** * vfs_readlink - copy symlink body into userspace buffer * @dentry: dentry on which to get symbolic link @@ -4748,6 +4725,9 @@ static int generic_readlink(struct dentry *dentry, char __user *buffer, int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen) { struct inode *inode = d_inode(dentry); + DEFINE_DELAYED_CALL(done); + const char *link; + int res; if (unlikely(!(inode->i_opflags & IOP_DEFAULT_READLINK))) { if (unlikely(inode->i_op->readlink)) @@ -4761,7 +4741,15 @@ int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen) spin_unlock(&inode->i_lock); } - return generic_readlink(dentry, buffer, buflen); + link = inode->i_link; + if (!link) { + link = inode->i_op->get_link(dentry, inode, &done); + if (IS_ERR(link)) + return PTR_ERR(link); + } + res = readlink_copy(buffer, buflen, link); + do_delayed_call(&done); + return res; } EXPORT_SYMBOL(vfs_readlink); |