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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-12-18 13:06:51 +0100 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-12-23 11:23:40 +0100 |
| commit | 4d61db4f87b527734ac0cc830dda8fcc4e2add2f (patch) | |
| tree | 881cb7614a928ba004f588a82c064592f461fee3 /fs/ubifs/sb.c | |
| parent | UBIFS: fix available blocks count (diff) | |
| download | linux-4d61db4f87b527734ac0cc830dda8fcc4e2add2f.tar.xz linux-4d61db4f87b527734ac0cc830dda8fcc4e2add2f.zip | |
UBIFS: use nicer 64-bit math
Instead of using do_div(), use better primitives from
linux/math64.h.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs/ubifs/sb.c')
| -rw-r--r-- | fs/ubifs/sb.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c index c5da201ab54f..e070c643d1bb 100644 --- a/fs/ubifs/sb.c +++ b/fs/ubifs/sb.c @@ -28,6 +28,7 @@ #include "ubifs.h" #include <linux/random.h> +#include <linux/math64.h> /* * Default journal size in logical eraseblocks as a percent of total @@ -80,7 +81,7 @@ static int create_default_filesystem(struct ubifs_info *c) int err, tmp, jnl_lebs, log_lebs, max_buds, main_lebs, main_first; int lpt_lebs, lpt_first, orph_lebs, big_lpt, ino_waste, sup_flags = 0; int min_leb_cnt = UBIFS_MIN_LEB_CNT; - uint64_t tmp64, main_bytes; + long long tmp64, main_bytes; __le64 tmp_le64; /* Some functions called from here depend on the @c->key_len filed */ @@ -160,7 +161,7 @@ static int create_default_filesystem(struct ubifs_info *c) if (!sup) return -ENOMEM; - tmp64 = (uint64_t)max_buds * c->leb_size; + tmp64 = (long long)max_buds * c->leb_size; if (big_lpt) sup_flags |= UBIFS_FLG_BIGLPT; @@ -187,9 +188,8 @@ static int create_default_filesystem(struct ubifs_info *c) generate_random_uuid(sup->uuid); - main_bytes = (uint64_t)main_lebs * c->leb_size; - tmp64 = main_bytes * DEFAULT_RP_PERCENT; - do_div(tmp64, 100); + main_bytes = (long long)main_lebs * c->leb_size; + tmp64 = div_u64(main_bytes * DEFAULT_RP_PERCENT, 100); if (tmp64 > DEFAULT_MAX_RP_SIZE) tmp64 = DEFAULT_MAX_RP_SIZE; sup->rp_size = cpu_to_le64(tmp64); |