xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Don't pass inode to ->d_hash() and ->d_compare()

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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>
This commit is contained in:
Linus Torvalds
2013-05-21 15:22:44 -07:00
zatwierdzone przez Al Viro
rodzic 642b704cd7
commit da53be12bb
23 zmienionych plików z 108 dodań i 165 usunięć
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9
fs/efivarfs/super.c
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@@ -45,8 +45,8 @@ static struct super_block *efivarfs_sb;
* So we need to perform a case-sensitive match on part 1 and a
* case-insensitive match on part 2.
*/
static int efivarfs_d_compare(const struct dentry *parent, const struct inode *pinode,
const struct dentry *dentry, const struct inode *inode,
static int efivarfs_d_compare(const struct dentry *parent,
const struct dentry *dentry,
unsigned int len, const char *str,
const struct qstr *name)
{
@@ -63,8 +63,7 @@ static int efivarfs_d_compare(const struct dentry *parent, const struct inode *p
return strncasecmp(name->name + guid, str + guid, EFI_VARIABLE_GUID_LEN);
}
static int efivarfs_d_hash(const struct dentry *dentry,
const struct inode *inode, struct qstr *qstr)
static int efivarfs_d_hash(const struct dentry *dentry, struct qstr *qstr)
{
unsigned long hash = init_name_hash();
const unsigned char *s = qstr->name;
@@ -108,7 +107,7 @@ static struct dentry *efivarfs_alloc_dentry(struct dentry *parent, char *name)
q.name = name;
q.len = strlen(name);
err = efivarfs_d_hash(NULL, NULL, &q);
err = efivarfs_d_hash(NULL, &q);
if (err)
return ERR_PTR(err);