autofs4: cleanup active and expire lookup

The lookup functions for active and expiring dentrys use parameters that
can be easily obtained on entry so we change the call to to take just the
dentry.  This makes the subsequent change, to send all lookups to
->lookup(), a bit cleaner.

Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Sage Weil <sage@newdream.net>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Andreas Dilger <adilger@sun.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Yehuda Saheh <yehuda@newdream.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 961ff377db037cd1792a58a529935b6fe55a3215..81700f4a19da53b04460503a19e07618528e83e3 100644 (file)
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -405,8 +405,11 @@ static const struct dentry_operations autofs4_dentry_operations = {
        .d_release      = autofs4_dentry_release,
 };
 
-static struct dentry *autofs4_lookup_active(struct autofs_sb_info *sbi, struct dentry *parent, struct qstr *name)
+static struct dentry *autofs4_lookup_active(struct dentry *dentry)
 {
+       struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+       struct dentry *parent = dentry->d_parent;
+       struct qstr *name = &dentry->d_name;
        unsigned int len = name->len;
        unsigned int hash = name->hash;
        const unsigned char *str = name->name;
@@ -457,8 +460,11 @@ next:
        return NULL;
 }
 
-static struct dentry *autofs4_lookup_expiring(struct autofs_sb_info *sbi, struct dentry *parent, struct qstr *name)
+static struct dentry *autofs4_lookup_expiring(struct dentry *dentry)
 {
+       struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+       struct dentry *parent = dentry->d_parent;
+       struct qstr *name = &dentry->d_name;
        unsigned int len = name->len;
        unsigned int hash = name->hash;
        const unsigned char *str = name->name;
@@ -530,7 +536,7 @@ static struct dentry *autofs4_lookup(struct inode *dir, struct dentry *dentry, s
        DPRINTK("pid = %u, pgrp = %u, catatonic = %d, oz_mode = %d",
                 current->pid, task_pgrp_nr(current), sbi->catatonic, oz_mode);
 
-       active = autofs4_lookup_active(sbi, dentry->d_parent, &dentry->d_name);
+       active = autofs4_lookup_active(dentry);
        if (active) {
                dentry = active;
                ino = autofs4_dentry_ino(dentry);
@@ -567,9 +573,7 @@ static struct dentry *autofs4_lookup(struct inode *dir, struct dentry *dentry, s
 
        if (!oz_mode) {
                mutex_unlock(&dir->i_mutex);
-               expiring = autofs4_lookup_expiring(sbi,
-                                                  dentry->d_parent,
-                                                  &dentry->d_name);
+               expiring = autofs4_lookup_expiring(dentry);
                if (expiring) {
                        /*
                         * If we are racing with expire the request might not