diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/hpfs/dentry.c |
Linux-2.6.12-rc2v2.6.12-rc2
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!
Diffstat (limited to 'fs/hpfs/dentry.c')
-rw-r--r-- | fs/hpfs/dentry.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/fs/hpfs/dentry.c b/fs/hpfs/dentry.c new file mode 100644 index 000000000000..08319126b2af --- /dev/null +++ b/fs/hpfs/dentry.c | |||
@@ -0,0 +1,60 @@ | |||
1 | /* | ||
2 | * linux/fs/hpfs/dentry.c | ||
3 | * | ||
4 | * Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999 | ||
5 | * | ||
6 | * dcache operations | ||
7 | */ | ||
8 | |||
9 | #include "hpfs_fn.h" | ||
10 | |||
11 | /* | ||
12 | * Note: the dentry argument is the parent dentry. | ||
13 | */ | ||
14 | |||
15 | static int hpfs_hash_dentry(struct dentry *dentry, struct qstr *qstr) | ||
16 | { | ||
17 | unsigned long hash; | ||
18 | int i; | ||
19 | unsigned l = qstr->len; | ||
20 | |||
21 | if (l == 1) if (qstr->name[0]=='.') goto x; | ||
22 | if (l == 2) if (qstr->name[0]=='.' || qstr->name[1]=='.') goto x; | ||
23 | hpfs_adjust_length((char *)qstr->name, &l); | ||
24 | /*if (hpfs_chk_name((char *)qstr->name,&l))*/ | ||
25 | /*return -ENAMETOOLONG;*/ | ||
26 | /*return -ENOENT;*/ | ||
27 | x: | ||
28 | |||
29 | hash = init_name_hash(); | ||
30 | for (i = 0; i < l; i++) | ||
31 | hash = partial_name_hash(hpfs_upcase(hpfs_sb(dentry->d_sb)->sb_cp_table,qstr->name[i]), hash); | ||
32 | qstr->hash = end_name_hash(hash); | ||
33 | |||
34 | return 0; | ||
35 | } | ||
36 | |||
37 | static int hpfs_compare_dentry(struct dentry *dentry, struct qstr *a, struct qstr *b) | ||
38 | { | ||
39 | unsigned al=a->len; | ||
40 | unsigned bl=b->len; | ||
41 | hpfs_adjust_length((char *)a->name, &al); | ||
42 | /*hpfs_adjust_length((char *)b->name, &bl);*/ | ||
43 | /* 'a' is the qstr of an already existing dentry, so the name | ||
44 | * must be valid. 'b' must be validated first. | ||
45 | */ | ||
46 | |||
47 | if (hpfs_chk_name((char *)b->name, &bl)) return 1; | ||
48 | if (hpfs_compare_names(dentry->d_sb, (char *)a->name, al, (char *)b->name, bl, 0)) return 1; | ||
49 | return 0; | ||
50 | } | ||
51 | |||
52 | static struct dentry_operations hpfs_dentry_operations = { | ||
53 | .d_hash = hpfs_hash_dentry, | ||
54 | .d_compare = hpfs_compare_dentry, | ||
55 | }; | ||
56 | |||
57 | void hpfs_set_dentry_operations(struct dentry *dentry) | ||
58 | { | ||
59 | dentry->d_op = &hpfs_dentry_operations; | ||
60 | } | ||