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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-21 15:22:44 -0700
committerAl Viro <viro@zeniv.linux.org.uk>2013-06-29 12:57:36 +0400
commitda53be12bbb4fabbe2e9f6f908de0cf478b5161d (patch)
treea0436fb462a7b16c82e58336e17c55b814f7be6b /fs/affs
parent642b704cd7a29be0b8900971eb525086c1c995b7 (diff)
downloadop-kernel-dev-da53be12bbb4fabbe2e9f6f908de0cf478b5161d.zip
op-kernel-dev-da53be12bbb4fabbe2e9f6f908de0cf478b5161d.tar.gz
Don't pass inode to ->d_hash() and ->d_compare()
Instances either don't look at it at all (the majority of cases) or only want it to find the superblock (which can be had as dentry->d_sb). A few cases that want more are actually safe with dentry->d_inode - the only precaution needed is the check that it hadn't been replaced with NULL by rmdir() or by overwriting rename(), which case should be simply treated as cache miss. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/affs')
-rw-r--r--fs/affs/namei.c26
1 files changed, 8 insertions, 18 deletions
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index ff65884..c36cbb4 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -13,18 +13,12 @@
typedef int (*toupper_t)(int);
static int affs_toupper(int ch);
-static int affs_hash_dentry(const struct dentry *,
- const struct inode *, struct qstr *);
-static int affs_compare_dentry(const struct dentry *parent,
- const struct inode *pinode,
- const struct dentry *dentry, const struct inode *inode,
+static int affs_hash_dentry(const struct dentry *, struct qstr *);
+static int affs_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name);
static int affs_intl_toupper(int ch);
-static int affs_intl_hash_dentry(const struct dentry *,
- const struct inode *, struct qstr *);
-static int affs_intl_compare_dentry(const struct dentry *parent,
- const struct inode *pinode,
- const struct dentry *dentry, const struct inode *inode,
+static int affs_intl_hash_dentry(const struct dentry *, struct qstr *);
+static int affs_intl_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name);
const struct dentry_operations affs_dentry_operations = {
@@ -86,14 +80,12 @@ __affs_hash_dentry(struct qstr *qstr, toupper_t toupper)
}
static int
-affs_hash_dentry(const struct dentry *dentry, const struct inode *inode,
- struct qstr *qstr)
+affs_hash_dentry(const struct dentry *dentry, struct qstr *qstr)
{
return __affs_hash_dentry(qstr, affs_toupper);
}
static int
-affs_intl_hash_dentry(const struct dentry *dentry, const struct inode *inode,
- struct qstr *qstr)
+affs_intl_hash_dentry(const struct dentry *dentry, struct qstr *qstr)
{
return __affs_hash_dentry(qstr, affs_intl_toupper);
}
@@ -131,15 +123,13 @@ static inline int __affs_compare_dentry(unsigned int len,
}
static int
-affs_compare_dentry(const struct dentry *parent, const struct inode *pinode,
- const struct dentry *dentry, const struct inode *inode,
+affs_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name)
{
return __affs_compare_dentry(len, str, name, affs_toupper);
}
static int
-affs_intl_compare_dentry(const struct dentry *parent,const struct inode *pinode,
- const struct dentry *dentry, const struct inode *inode,
+affs_intl_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name)
{
return __affs_compare_dentry(len, str, name, affs_intl_toupper);
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