mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-11-20 00:26:39 +08:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/*
|
|
* linux/fs/hpfs/dentry.c
|
|
*
|
|
* Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
|
|
*
|
|
* dcache operations
|
|
*/
|
|
|
|
#include "hpfs_fn.h"
|
|
|
|
/*
|
|
* Note: the dentry argument is the parent dentry.
|
|
*/
|
|
|
|
static int hpfs_hash_dentry(struct dentry *dentry, struct qstr *qstr)
|
|
{
|
|
unsigned long hash;
|
|
int i;
|
|
unsigned l = qstr->len;
|
|
|
|
if (l == 1) if (qstr->name[0]=='.') goto x;
|
|
if (l == 2) if (qstr->name[0]=='.' || qstr->name[1]=='.') goto x;
|
|
hpfs_adjust_length((char *)qstr->name, &l);
|
|
/*if (hpfs_chk_name((char *)qstr->name,&l))*/
|
|
/*return -ENAMETOOLONG;*/
|
|
/*return -ENOENT;*/
|
|
x:
|
|
|
|
hash = init_name_hash();
|
|
for (i = 0; i < l; i++)
|
|
hash = partial_name_hash(hpfs_upcase(hpfs_sb(dentry->d_sb)->sb_cp_table,qstr->name[i]), hash);
|
|
qstr->hash = end_name_hash(hash);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hpfs_compare_dentry(struct dentry *dentry, struct qstr *a, struct qstr *b)
|
|
{
|
|
unsigned al=a->len;
|
|
unsigned bl=b->len;
|
|
hpfs_adjust_length((char *)a->name, &al);
|
|
/*hpfs_adjust_length((char *)b->name, &bl);*/
|
|
/* 'a' is the qstr of an already existing dentry, so the name
|
|
* must be valid. 'b' must be validated first.
|
|
*/
|
|
|
|
if (hpfs_chk_name((char *)b->name, &bl)) return 1;
|
|
if (hpfs_compare_names(dentry->d_sb, (char *)a->name, al, (char *)b->name, bl, 0)) return 1;
|
|
return 0;
|
|
}
|
|
|
|
static struct dentry_operations hpfs_dentry_operations = {
|
|
.d_hash = hpfs_hash_dentry,
|
|
.d_compare = hpfs_compare_dentry,
|
|
};
|
|
|
|
void hpfs_set_dentry_operations(struct dentry *dentry)
|
|
{
|
|
dentry->d_op = &hpfs_dentry_operations;
|
|
}
|