diff options
Diffstat (limited to 'fs/ubifs/super.c')
| -rw-r--r-- | fs/ubifs/super.c | 37 |
1 files changed, 27 insertions, 10 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index c5c98355459..faa44f90608 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -421,8 +421,8 @@ static int ubifs_show_options(struct seq_file *s, struct vfsmount *mnt) seq_printf(s, ",no_chk_data_crc"); if (c->mount_opts.override_compr) { - seq_printf(s, ",compr="); - seq_printf(s, ubifs_compr_name(c->mount_opts.compr_type)); + seq_printf(s, ",compr=%s", + ubifs_compr_name(c->mount_opts.compr_type)); } return 0; @@ -700,6 +700,8 @@ static int init_constants_sb(struct ubifs_info *c) if (err) return err; + /* Initialize effective LEB size used in budgeting calculations */ + c->idx_leb_size = c->leb_size - c->max_idx_node_sz; return 0; } @@ -716,6 +718,7 @@ static void init_constants_master(struct ubifs_info *c) long long tmp64; c->min_idx_lebs = ubifs_calc_min_idx_lebs(c); + c->report_rp_size = ubifs_reported_space(c, c->rp_size); /* * Calculate total amount of FS blocks. This number is not used @@ -1201,7 +1204,7 @@ static int mount_ubifs(struct ubifs_info *c) goto out_cbuf; /* Create background thread */ - c->bgt = kthread_create(ubifs_bg_thread, c, c->bgt_name); + c->bgt = kthread_create(ubifs_bg_thread, c, "%s", c->bgt_name); if (IS_ERR(c->bgt)) { err = PTR_ERR(c->bgt); c->bgt = NULL; @@ -1318,11 +1321,15 @@ static int mount_ubifs(struct ubifs_info *c) else { c->need_recovery = 0; ubifs_msg("recovery completed"); - /* GC LEB has to be empty and taken at this point */ - ubifs_assert(c->lst.taken_empty_lebs == 1); + /* + * GC LEB has to be empty and taken at this point. But + * the journal head LEBs may also be accounted as + * "empty taken" if they are empty. + */ + ubifs_assert(c->lst.taken_empty_lebs > 0); } } else - ubifs_assert(c->lst.taken_empty_lebs == 1); + ubifs_assert(c->lst.taken_empty_lebs > 0); err = dbg_check_filesystem(c); if (err) @@ -1344,8 +1351,9 @@ static int mount_ubifs(struct ubifs_info *c) x = (long long)c->log_lebs * c->leb_size + c->max_bud_bytes; ubifs_msg("journal size: %lld bytes (%lld KiB, %lld MiB, %d " "LEBs)", x, x >> 10, x >> 20, c->log_lebs + c->max_bud_cnt); - ubifs_msg("media format: %d (latest is %d)", - c->fmt_version, UBIFS_FORMAT_VERSION); + ubifs_msg("media format: w%d/r%d (latest is w%d/r%d)", + c->fmt_version, c->ro_compat_version, + UBIFS_FORMAT_VERSION, UBIFS_RO_COMPAT_VERSION); ubifs_msg("default compressor: %s", ubifs_compr_name(c->default_compr)); ubifs_msg("reserved for root: %llu bytes (%llu KiB)", c->report_rp_size, c->report_rp_size >> 10); @@ -1485,6 +1493,15 @@ static int ubifs_remount_rw(struct ubifs_info *c) { int err, lnum; + if (c->rw_incompat) { + ubifs_err("the file-system is not R/W-compatible"); + ubifs_msg("on-flash format version is w%d/r%d, but software " + "only supports up to version w%d/r%d", c->fmt_version, + c->ro_compat_version, UBIFS_FORMAT_VERSION, + UBIFS_RO_COMPAT_VERSION); + return -EROFS; + } + mutex_lock(&c->umount_mutex); dbg_save_space_info(c); c->remounting_rw = 1; @@ -1554,7 +1571,7 @@ static int ubifs_remount_rw(struct ubifs_info *c) ubifs_create_buds_lists(c); /* Create background thread */ - c->bgt = kthread_create(ubifs_bg_thread, c, c->bgt_name); + c->bgt = kthread_create(ubifs_bg_thread, c, "%s", c->bgt_name); if (IS_ERR(c->bgt)) { err = PTR_ERR(c->bgt); c->bgt = NULL; @@ -1775,7 +1792,7 @@ static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data) c->bu.buf = NULL; } - ubifs_assert(c->lst.taken_empty_lebs == 1); + ubifs_assert(c->lst.taken_empty_lebs > 0); return 0; } |