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OpenCloudOS-Kernel
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UBIFS: remove dead code 

Remove dead pieces of code under "if (c->min_io_size == 1)" statement -
we never execute it because in UBIFS 'c->min_io_size' is always at least 8.
This are leftovers from old pre-mainline prototype.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy 2011-05-30 14:30:51 +03:00 committed by Artem Bityutskiy
parent 12e776a088
commit 1f42596ec0
1 changed files with 29 additions and 75 deletions
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104
fs/ubifs/tnc_commit.c
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@ -491,25 +491,6 @@ static int layout_in_empty_space(struct ubifs_info *c)
else
next_len = ubifs_idx_node_sz(c, cnext->child_cnt);
if (c->min_io_size == 1) {
buf_offs += ALIGN(len, 8);
if (next_len) {
if (buf_offs + next_len <= c->leb_size)
continue;
err = ubifs_update_one_lp(c, lnum, 0,
c->leb_size - buf_offs, 0, 0);
if (err)
return err;
lnum = -1;
continue;
}
err = ubifs_update_one_lp(c, lnum,
c->leb_size - buf_offs, 0, 0, 0);
if (err)
return err;
break;
}
/* Update buffer positions */
wlen = used + len;
used += ALIGN(len, 8);
@ -830,7 +811,7 @@ static int write_index(struct ubifs_info *c)
struct ubifs_idx_node *idx;
struct ubifs_znode *znode, *cnext;
int i, lnum, offs, len, next_len, buf_len, buf_offs, used;
int avail, wlen, err, lnum_pos = 0;
int avail, wlen, err, lnum_pos = 0, blen, nxt_offs;
cnext = c->enext;
if (!cnext)
@ -938,65 +919,38 @@ static int write_index(struct ubifs_info *c)
else
next_len = ubifs_idx_node_sz(c, cnext->child_cnt);
if (c->min_io_size == 1) {
/*
* Write the prepared index node immediately if there is
* no minimum IO size
*/
err = ubifs_leb_write(c, lnum, c->cbuf, buf_offs,
wlen, UBI_SHORTTERM);
if (err)
return err;
buf_offs += ALIGN(wlen, 8);
if (next_len) {
used = 0;
avail = buf_len;
if (buf_offs + next_len > c->leb_size) {
err = ubifs_update_one_lp(c, lnum,
LPROPS_NC, 0, 0, LPROPS_TAKEN);
if (err)
return err;
lnum = -1;
}
nxt_offs = buf_offs + used + next_len;
if (next_len && nxt_offs <= c->leb_size) {
if (avail > 0)
continue;
}
else
blen = buf_len;
} else {
int blen, nxt_offs = buf_offs + used + next_len;
wlen = ALIGN(wlen, 8);
blen = ALIGN(wlen, c->min_io_size);
ubifs_pad(c, c->cbuf + wlen, blen - wlen);
}
if (next_len && nxt_offs <= c->leb_size) {
if (avail > 0)
continue;
else
blen = buf_len;
} else {
wlen = ALIGN(wlen, 8);
blen = ALIGN(wlen, c->min_io_size);
ubifs_pad(c, c->cbuf + wlen, blen - wlen);
}
/*
* The buffer is full or there are no more znodes
* to do
*/
err = ubifs_leb_write(c, lnum, c->cbuf, buf_offs,
blen, UBI_SHORTTERM);
if (err)
return err;
buf_offs += blen;
if (next_len) {
if (nxt_offs > c->leb_size) {
err = ubifs_update_one_lp(c, lnum,
LPROPS_NC, 0, 0, LPROPS_TAKEN);
if (err)
return err;
lnum = -1;
}
used -= blen;
if (used < 0)
used = 0;
avail = buf_len - used;
memmove(c->cbuf, c->cbuf + blen, used);
continue;
/* The buffer is full or there are no more znodes to do */
err = ubifs_leb_write(c, lnum, c->cbuf, buf_offs, blen,
UBI_SHORTTERM);
if (err)
return err;
buf_offs += blen;
if (next_len) {
if (nxt_offs > c->leb_size) {
err = ubifs_update_one_lp(c, lnum, LPROPS_NC, 0,
0, LPROPS_TAKEN);
if (err)
return err;
lnum = -1;
}
used -= blen;
if (used < 0)
used = 0;
avail = buf_len - used;
memmove(c->cbuf, c->cbuf + blen, used);
continue;
}
break;
}