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pull the common predecessors into do_last()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2009-12-24 02:12:06 -05:00
parent c41c140562
commit a1e28038df
1 changed files with 9 additions and 12 deletions
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21
fs/namei.c
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@ -1648,13 +1648,19 @@ exit:
static struct file *do_last(struct nameidata *nd, struct path *path,
int open_flag, int flag, int acc_mode,
int mode, const char *pathname,
struct dentry *dir, int *is_link)
int *is_link)
{
struct dentry *dir = nd->path.dentry;
struct file *filp;
int error;
*is_link = 0;
mutex_lock(&dir->d_inode->i_mutex);
path->dentry = lookup_hash(nd);
path->mnt = nd->path.mnt;
error = PTR_ERR(path->dentry);
if (IS_ERR(path->dentry)) {
mutex_unlock(&dir->d_inode->i_mutex);
@ -1749,7 +1755,6 @@ struct file *do_filp_open(int dfd, const char *pathname,
struct nameidata nd;
int error;
struct path path;
struct dentry *dir;
int count = 0;
int flag = open_to_namei_flags(open_flag);
int force_reval = 0;
@ -1837,16 +1842,12 @@ reval:
filp->f_flags = open_flag;
nd.intent.open.flags = flag;
nd.intent.open.create_mode = mode;
dir = nd.path.dentry;
nd.flags &= ~LOOKUP_PARENT;
nd.flags |= LOOKUP_CREATE | LOOKUP_OPEN;
if (flag & O_EXCL)
nd.flags |= LOOKUP_EXCL;
mutex_lock(&dir->d_inode->i_mutex);
path.dentry = lookup_hash(&nd);
path.mnt = nd.path.mnt;
filp = do_last(&nd, &path, open_flag, flag, acc_mode, mode,
pathname, dir, &is_link);
pathname, &is_link);
if (is_link)
goto do_link;
if (nd.root.mnt)
@ -1919,12 +1920,8 @@ do_link:
__putname(nd.last.name);
goto exit;
}
dir = nd.path.dentry;
mutex_lock(&dir->d_inode->i_mutex);
path.dentry = lookup_hash(&nd);
path.mnt = nd.path.mnt;
filp = do_last(&nd, &path, open_flag, flag, acc_mode, mode,
pathname, dir, &is_link);
pathname, &is_link);
__putname(nd.last.name);
if (is_link)
goto do_link;