diff options
Diffstat (limited to 'fs/ubifs/sb.c')
| -rw-r--r-- | fs/ubifs/sb.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c index 0f392351dc5..e070c643d1b 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; @@ -179,14 +180,16 @@ static int create_default_filesystem(struct ubifs_info *c) sup->fanout = cpu_to_le32(DEFAULT_FANOUT); sup->lsave_cnt = cpu_to_le32(c->lsave_cnt); sup->fmt_version = cpu_to_le32(UBIFS_FORMAT_VERSION); - sup->default_compr = cpu_to_le16(UBIFS_COMPR_LZO); sup->time_gran = cpu_to_le32(DEFAULT_TIME_GRAN); + if (c->mount_opts.override_compr) + sup->default_compr = cpu_to_le16(c->mount_opts.compr_type); + else + sup->default_compr = cpu_to_le16(UBIFS_COMPR_LZO); 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); @@ -582,16 +585,15 @@ int ubifs_read_superblock(struct ubifs_info *c) c->jhead_cnt = le32_to_cpu(sup->jhead_cnt) + NONDATA_JHEADS_CNT; c->fanout = le32_to_cpu(sup->fanout); c->lsave_cnt = le32_to_cpu(sup->lsave_cnt); - c->default_compr = le16_to_cpu(sup->default_compr); c->rp_size = le64_to_cpu(sup->rp_size); c->rp_uid = le32_to_cpu(sup->rp_uid); c->rp_gid = le32_to_cpu(sup->rp_gid); sup_flags = le32_to_cpu(sup->flags); + if (!c->mount_opts.override_compr) + c->default_compr = le16_to_cpu(sup->default_compr); c->vfs_sb->s_time_gran = le32_to_cpu(sup->time_gran); - memcpy(&c->uuid, &sup->uuid, 16); - c->big_lpt = !!(sup_flags & UBIFS_FLG_BIGLPT); /* Automatically increase file system size to the maximum size */ |