UBIFS: rename random32() to prandom_u32()

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>

diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index 12817ffc7345b6fcb70726b087a888961678b2f4..7f60e900edff6ff758e84ddf95f0da693570832e 100644 (file)
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -2459,7 +2459,7 @@ error_dump:
 
 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)) {
                                d->pc_delay = 1;
                                /* Fail withing 1 minute */
-                               delay = random32() % 60000;
+                               delay = prandom_u32() % 60000;
                                d->pc_timeout = jiffies;
                                d->pc_timeout += msecs_to_jiffies(delay);
                                ubifs_warn("failing after %lums", delay);
                        } else {
                                d->pc_delay = 2;
-                               delay = random32() % 10000;
+                               delay = prandom_u32() % 10000;
                                /* Fail within 10000 operations */
                                d->pc_cnt_max = 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 char *p = (void *)buf;
 
-       from = random32() % (len + 1);
+       from = prandom_u32() % (len + 1);
        /* Corruption may only span one max. write unit */
        to = min(len, ALIGN(from, c->max_write_size));
 

diff --git a/fs/ubifs/lpt_commit.c b/fs/ubifs/lpt_commit.c
index 9daaeef675dd5460ed7a93a57d51f40d9d926637..4b826abb1528f57035b2ebb47ccfc4ee458e0ff8 100644 (file)
--- a/fs/ubifs/lpt_commit.c
+++ b/fs/ubifs/lpt_commit.c
@@ -2007,28 +2007,28 @@ static int dbg_populate_lsave(struct ubifs_info *c)
 
        if (!dbg_is_chk_gen(c))
                return 0;
-       if (random32() & 3)
+       if (prandom_u32() & 3)
                return 0;
 
        for (i = 0; i < c->lsave_cnt; i++)
                c->lsave[i] = c->main_first;
 
        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)
-               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)
-               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];
        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];
        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];
        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;
 }

diff --git a/fs/ubifs/tnc_commit.c b/fs/ubifs/tnc_commit.c
index 523bbad69c0c0e7a491581f94c89dfc823e6f404..52a6559275c43eb350d818d10797879ec0c1b9f4 100644 (file)
--- a/fs/ubifs/tnc_commit.c
+++ b/fs/ubifs/tnc_commit.c
@@ -683,7 +683,7 @@ static int alloc_idx_lebs(struct ubifs_info *c, int cnt)
                c->ilebs[c->ileb_cnt++] = 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 0;
 }