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UBIFS: rename random32() to prandom_u32()

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Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This commit is contained in:
Akinobu Mita 2013-01-03 21:19:09 +09:00 committed by Artem Bityutskiy
parent 9931faca02
commit 3d251a5b9e
3 changed files with 12 additions and 12 deletions

8
fs/ubifs/debug.c
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@ -2459,7 +2459,7 @@ int dbg_check_nondata_nodes_order(struct ubifs_info *c, struct list_head *head)
static inline int chance(unsigned int n, unsigned int out_of) static inline int chance(unsigned int n, unsigned int out_of)
{ {
return !!((random32() % out_of) + 1 <= n); return !!((prandom_u32() % out_of) + 1 <= n);
} }
@ -2477,13 +2477,13 @@ static int power_cut_emulated(struct ubifs_info *c, int lnum, int write)
if (chance(1, 2)) { if (chance(1, 2)) {
d->pc_delay = 1; d->pc_delay = 1;
/* Fail withing 1 minute */ /* Fail withing 1 minute */
delay = random32() % 60000; delay = prandom_u32() % 60000;
d->pc_timeout = jiffies; d->pc_timeout = jiffies;
d->pc_timeout += msecs_to_jiffies(delay); d->pc_timeout += msecs_to_jiffies(delay);
ubifs_warn("failing after %lums", delay); ubifs_warn("failing after %lums", delay);
} else { } else {
d->pc_delay = 2; d->pc_delay = 2;
delay = random32() % 10000; delay = prandom_u32() % 10000;
/* Fail within 10000 operations */ /* Fail within 10000 operations */
d->pc_cnt_max = delay; d->pc_cnt_max = delay;
ubifs_warn("failing after %lu calls", delay); ubifs_warn("failing after %lu calls", delay);
@ -2563,7 +2563,7 @@ static int corrupt_data(const struct ubifs_info *c, const void *buf,
unsigned int from, to, ffs = chance(1, 2); unsigned int from, to, ffs = chance(1, 2);
unsigned char *p = (void *)buf; unsigned char *p = (void *)buf;
from = random32() % (len + 1); from = prandom_u32() % (len + 1);
/* Corruption may only span one max. write unit */ /* Corruption may only span one max. write unit */
to = min(len, ALIGN(from, c->max_write_size)); to = min(len, ALIGN(from, c->max_write_size));

14
fs/ubifs/lpt_commit.c
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@ -2007,28 +2007,28 @@ static int dbg_populate_lsave(struct ubifs_info *c)
if (!dbg_is_chk_gen(c)) if (!dbg_is_chk_gen(c))
return 0; return 0;
if (random32() & 3) if (prandom_u32() & 3)
return 0; return 0;
for (i = 0; i < c->lsave_cnt; i++) for (i = 0; i < c->lsave_cnt; i++)
c->lsave[i] = c->main_first; c->lsave[i] = c->main_first;
list_for_each_entry(lprops, &c->empty_list, list) list_for_each_entry(lprops, &c->empty_list, list)
c->lsave[random32() % c->lsave_cnt] = lprops->lnum; c->lsave[prandom_u32() % c->lsave_cnt] = lprops->lnum;
list_for_each_entry(lprops, &c->freeable_list, list) list_for_each_entry(lprops, &c->freeable_list, list)
c->lsave[random32() % c->lsave_cnt] = lprops->lnum; c->lsave[prandom_u32() % c->lsave_cnt] = lprops->lnum;
list_for_each_entry(lprops, &c->frdi_idx_list, list) list_for_each_entry(lprops, &c->frdi_idx_list, list)
c->lsave[random32() % c->lsave_cnt] = lprops->lnum; c->lsave[prandom_u32() % c->lsave_cnt] = lprops->lnum;
heap = &c->lpt_heap[LPROPS_DIRTY_IDX - 1]; heap = &c->lpt_heap[LPROPS_DIRTY_IDX - 1];
for (i = 0; i < heap->cnt; i++) for (i = 0; i < heap->cnt; i++)
c->lsave[random32() % c->lsave_cnt] = heap->arr[i]->lnum; c->lsave[prandom_u32() % c->lsave_cnt] = heap->arr[i]->lnum;
heap = &c->lpt_heap[LPROPS_DIRTY - 1]; heap = &c->lpt_heap[LPROPS_DIRTY - 1];
for (i = 0; i < heap->cnt; i++) for (i = 0; i < heap->cnt; i++)
c->lsave[random32() % c->lsave_cnt] = heap->arr[i]->lnum; c->lsave[prandom_u32() % c->lsave_cnt] = heap->arr[i]->lnum;
heap = &c->lpt_heap[LPROPS_FREE - 1]; heap = &c->lpt_heap[LPROPS_FREE - 1];
for (i = 0; i < heap->cnt; i++) for (i = 0; i < heap->cnt; i++)
c->lsave[random32() % c->lsave_cnt] = heap->arr[i]->lnum; c->lsave[prandom_u32() % c->lsave_cnt] = heap->arr[i]->lnum;
return 1; return 1;
} }

2
fs/ubifs/tnc_commit.c
View File

@ -683,7 +683,7 @@ static int alloc_idx_lebs(struct ubifs_info *c, int cnt)
c->ilebs[c->ileb_cnt++] = lnum; c->ilebs[c->ileb_cnt++] = lnum;
dbg_cmt("LEB %d", lnum); dbg_cmt("LEB %d", lnum);
} }
if (dbg_is_chk_index(c) && !(random32() & 7)) if (dbg_is_chk_index(c) && !(prandom_u32() & 7))
return -ENOSPC; return -ENOSPC;
return 0; return 0;
} }