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Hi,
On Mon, 2006-09-04 at 13:35 +0200, Jan Engelhardt wrote:
> >+> >+ return copied;> >+fail:> >+ return (copied) ? copied : error;> >+}> >+> >+typedef int (*gfs2_dscan_t)(const struct gfs2_dirent *dent,
> >+ const struct qstr *name,> >+ void *opaque);> > Collect all the typedefs above all functions (applies to all .c files).
>
ok
> >+static inline int __gfs2_dirent_find(const struct gfs2_dirent *dent,
> >+ const struct qstr *name, int ret)> >+{> >+ if (dent->de_inum.no_addr != 0 &&> >+ be32_to_cpu(dent->de_hash) == name->hash &&
> >+ be16_to_cpu(dent->de_name_len) == name->len &&
> >+ memcmp((char *)(dent+1), name->name, name->len) == 0)> > Nocast.>
ok
> >+static struct gfs2_dirent *gfs2_dirent_scan(struct inode *inode,
[lines snipped]
> >+ offset = ret;> >+ prev = NULL;> >+ dent = (struct gfs2_dirent *)(buf + offset);> > Nocast.>
ok
> >+ dent = (struct gfs2_dirent *)(buf + offset);> > > >+ if ((char *)cur + cur_rec_len >= bh_end) {> >+ if ((char *)cur + cur_rec_len > bh_end) {
> >+ gfs2_consist_inode(dip);
> >+ return -EIO;
> >+ }
> >+ return -ENOENT;
> >+ }> > if((char *)cur + cur_rec_len > bh_end) {
> gfs2_consist_inode(dip);
> return -EIO;
> } else if((char *)cur + cur_rec_len == bh_end)
> return -ENOENT;
>
ok
> >+ tmp = (struct gfs2_dirent *)((char *)cur + cur_rec_len);
> >+> >+ if ((char *)tmp + be16_to_cpu(tmp->de_rec_len) > bh_end) {> > Aah, this makes my eyes hurt. Though, it is probably a task not too short to
> think of something that would do without casts.>
Well I've had a crack at this. I've got it down to one cast. Let me know
if you think thats ok now... I managed to factor out some common code at
the same time.
> >+ leaf->lf_depth = cpu_to_be16(depth);> >+ leaf->lf_entries = cpu_to_be16(0);> > 0 is said to be portable across all CPUs, therefore
> > leaf->lf_entries = 0;
>
> should suffice.
>
> >+ leaf->lf_next = cpu_to_be64(0);
>
ok, both now fixed.
> > >+ for (x = sdp->sd_hash_ptrs; x--; from++) {> >+ *to++ = *from; /* No endianess worries */> >+ *to++ = *from;> >+ }> > Add /* Hakuna Matata */ and there will never be worries :-)
> :-) I had to use google to understand the reference :-)
> >+static int compare_dents(const void *a, const void *b)
> >+{> >+ struct gfs2_dirent *dent_a, *dent_b;> >+ uint32_t hash_a, hash_b;> >+ int ret = 0;> >+> >+ dent_a = *(struct gfs2_dirent **)a;> > But in this function you can have it const! Or not?
>
Yes, and now all converted to const
[lines snipped]
> ret = memcmp((char *)(dent_a + 1),
> >+ (char *)(dent_b + 1),> >+ len_a);
>
> Nocast.
>
ok
> >+ error = filldir(opaque, (char *)(dent + 1),> > If you case, then cast it directly, in this case, filldir takes "const char *"
> as 2nd type.
>
ok
> >+ larr = vmalloc((leaves + entries) * sizeof(void*));> ^
> Space, to go in line with all the other casts.
>
fixed
> >+static inline uint32_t gfs2_disk_hash(const char *data, int len)
> >+{> >+ return crc32_le(0xFFFFFFFF, data, len) ^ 0xFFFFFFFF;
> >+}> > Mind using (uint32_t)-1 or (uint32_t)~0 for that?>
~0 is the variant I've chosen.
> >+ memcpy((char*)(dent+1), name->name, name->len);> > Last but not least, nocast.>
ok.
The patch is:
http://www.kernel.org/git/?p=linux/kernel/git/steve/gfs2-2.6.git;a=commitdiff;h=2bdbc5d73961c040fdc9b30d985fab3047d697a0
Thanks for doing all this review work, btw. I'll be working on your more
recent emails today,
Steve.
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