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isofs: don't bother with ->d_op for normal case

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we only need it for joliet and case-insensitive mounts

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-10-28 18:40:11 -04:00
parent f643ff550a
commit b0afd8e5db
2 changed files with 4 additions and 22 deletions
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24
fs/isofs/inode.c
View File

@ -29,13 +29,9 @@
#define BEQUIET
static int isofs_hashi(const struct dentry *parent, struct qstr *qstr);
static int isofs_hash(const struct dentry *parent, struct qstr *qstr);
static int isofs_dentry_cmpi(const struct dentry *parent,
const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name);
static int isofs_dentry_cmp(const struct dentry *parent,
const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name);
#ifdef CONFIG_JOLIET
static int isofs_hashi_ms(const struct dentry *parent, struct qstr *qstr);
@ -134,10 +130,6 @@ static const struct super_operations isofs_sops = {
static const struct dentry_operations isofs_dentry_ops[] = {
{
.d_hash = isofs_hash,
.d_compare = isofs_dentry_cmp,
},
{
.d_hash = isofs_hashi,
.d_compare = isofs_dentry_cmpi,
@ -257,25 +249,12 @@ static int isofs_dentry_cmp_common(
return 1;
}
static int
isofs_hash(const struct dentry *dentry, struct qstr *qstr)
{
return isofs_hash_common(qstr, 0);
}
static int
isofs_hashi(const struct dentry *dentry, struct qstr *qstr)
{
return isofs_hashi_common(qstr, 0);
}
static int
isofs_dentry_cmp(const struct dentry *parent, const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name)
{
return isofs_dentry_cmp_common(len, str, name, 0, 0);
}
static int
isofs_dentry_cmpi(const struct dentry *parent, const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name)
@ -930,7 +909,8 @@ root_found:
if (opt.check == 'r')
table++;
s->s_d_op = &isofs_dentry_ops[table];
if (table)
s->s_d_op = &isofs_dentry_ops[table - 1];
/* get the root dentry */
s->s_root = d_make_root(inode);

2
fs/isofs/namei.c
View File

@ -20,6 +20,8 @@ isofs_cmp(struct dentry *dentry, const char *compare, int dlen)
struct qstr qstr;
qstr.name = compare;
qstr.len = dlen;
if (likely(!dentry->d_op))
return dentry->d_name.len != dlen || memcmp(dentry->d_name.name, compare, dlen);
return dentry->d_op->d_compare(NULL, NULL, dentry->d_name.len, dentry->d_name.name, &qstr);
}