X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=fs%2Fjbd2%2Fjournal.c;h=0fa0123151d3117c5d3678c1bc36bf7b5bb00cd4;hp=f24df13adc4e9cfb5d71d851c959193e0f1e2b61;hb=092f4c56c1927e4b61a41ee8055005f1cb437009;hpb=c2f340a69cabe0fb7b9f02d1a2495927db225a06 diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index f24df13adc4e..0fa0123151d3 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -491,7 +491,7 @@ int __jbd2_log_start_commit(journal_t *journal, tid_t target) */ journal->j_commit_request = target; - jbd_debug(1, "JBD: requesting commit %d/%d\n", + jbd_debug(1, "JBD2: requesting commit %d/%d\n", journal->j_commit_request, journal->j_commit_sequence); wake_up(&journal->j_wait_commit); @@ -500,7 +500,7 @@ int __jbd2_log_start_commit(journal_t *journal, tid_t target) /* This should never happen, but if it does, preserve the evidence before kjournald goes into a loop and increments j_commit_sequence beyond all recognition. */ - WARN_ONCE(1, "jbd: bad log_start_commit: %u %u %u %u\n", + WARN_ONCE(1, "JBD2: bad log_start_commit: %u %u %u %u\n", journal->j_commit_request, journal->j_commit_sequence, target, journal->j_running_transaction ? @@ -645,7 +645,7 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid) } #endif while (tid_gt(tid, journal->j_commit_sequence)) { - jbd_debug(1, "JBD: want %d, j_commit_sequence=%d\n", + jbd_debug(1, "JBD2: want %d, j_commit_sequence=%d\n", tid, journal->j_commit_sequence); wake_up(&journal->j_wait_commit); read_unlock(&journal->j_state_lock); @@ -1093,7 +1093,7 @@ static int journal_reset(journal_t *journal) first = be32_to_cpu(sb->s_first); last = be32_to_cpu(sb->s_maxlen); if (first + JBD2_MIN_JOURNAL_BLOCKS > last + 1) { - printk(KERN_ERR "JBD: Journal too short (blocks %llu-%llu).\n", + printk(KERN_ERR "JBD2: Journal too short (blocks %llu-%llu).\n", first, last); journal_fail_superblock(journal); return -EINVAL; @@ -1139,7 +1139,7 @@ void jbd2_journal_update_superblock(journal_t *journal, int wait) */ if (sb->s_start == 0 && journal->j_tail_sequence == journal->j_transaction_sequence) { - jbd_debug(1,"JBD: Skipping superblock update on recovered sb " + jbd_debug(1, "JBD2: Skipping superblock update on recovered sb " "(start %ld, seq %d, errno %d)\n", journal->j_tail, journal->j_tail_sequence, journal->j_errno); @@ -1163,7 +1163,7 @@ void jbd2_journal_update_superblock(journal_t *journal, int wait) } read_lock(&journal->j_state_lock); - jbd_debug(1,"JBD: updating superblock (start %ld, seq %d, errno %d)\n", + jbd_debug(1, "JBD2: updating superblock (start %ld, seq %d, errno %d)\n", journal->j_tail, journal->j_tail_sequence, journal->j_errno); sb->s_sequence = cpu_to_be32(journal->j_tail_sequence); @@ -1216,8 +1216,8 @@ static int journal_get_superblock(journal_t *journal) ll_rw_block(READ, 1, &bh); wait_on_buffer(bh); if (!buffer_uptodate(bh)) { - printk (KERN_ERR - "JBD: IO error reading journal superblock\n"); + printk(KERN_ERR + "JBD2: IO error reading journal superblock\n"); goto out; } } @@ -1228,7 +1228,7 @@ static int journal_get_superblock(journal_t *journal) if (sb->s_header.h_magic != cpu_to_be32(JBD2_MAGIC_NUMBER) || sb->s_blocksize != cpu_to_be32(journal->j_blocksize)) { - printk(KERN_WARNING "JBD: no valid journal superblock found\n"); + printk(KERN_WARNING "JBD2: no valid journal superblock found\n"); goto out; } @@ -1240,14 +1240,22 @@ static int journal_get_superblock(journal_t *journal) journal->j_format_version = 2; break; default: - printk(KERN_WARNING "JBD: unrecognised superblock format ID\n"); + printk(KERN_WARNING "JBD2: unrecognised superblock format ID\n"); goto out; } if (be32_to_cpu(sb->s_maxlen) < journal->j_maxlen) journal->j_maxlen = be32_to_cpu(sb->s_maxlen); else if (be32_to_cpu(sb->s_maxlen) > journal->j_maxlen) { - printk (KERN_WARNING "JBD: journal file too short\n"); + printk(KERN_WARNING "JBD2: journal file too short\n"); + goto out; + } + + if (be32_to_cpu(sb->s_first) == 0 || + be32_to_cpu(sb->s_first) >= journal->j_maxlen) { + printk(KERN_WARNING + "JBD2: Invalid start block of journal: %u\n", + be32_to_cpu(sb->s_first)); goto out; } @@ -1310,8 +1318,8 @@ int jbd2_journal_load(journal_t *journal) ~cpu_to_be32(JBD2_KNOWN_ROCOMPAT_FEATURES)) || (sb->s_feature_incompat & ~cpu_to_be32(JBD2_KNOWN_INCOMPAT_FEATURES))) { - printk (KERN_WARNING - "JBD: Unrecognised features on journal\n"); + printk(KERN_WARNING + "JBD2: Unrecognised features on journal\n"); return -EINVAL; } } @@ -1346,7 +1354,7 @@ int jbd2_journal_load(journal_t *journal) return 0; recovery_error: - printk (KERN_WARNING "JBD: recovery failed\n"); + printk(KERN_WARNING "JBD2: recovery failed\n"); return -EIO; } @@ -1577,7 +1585,7 @@ static int journal_convert_superblock_v1(journal_t *journal, struct buffer_head *bh; printk(KERN_WARNING - "JBD: Converting superblock from version 1 to 2.\n"); + "JBD2: Converting superblock from version 1 to 2.\n"); /* Pre-initialise new fields to zero */ offset = ((char *) &(sb->s_feature_compat)) - ((char *) sb); @@ -1694,7 +1702,7 @@ int jbd2_journal_wipe(journal_t *journal, int write) if (!journal->j_tail) goto no_recovery; - printk (KERN_WARNING "JBD: %s recovery information on journal\n", + printk(KERN_WARNING "JBD2: %s recovery information on journal\n", write ? "Clearing" : "Ignoring"); err = jbd2_journal_skip_recovery(journal); @@ -2020,7 +2028,7 @@ static int journal_init_jbd2_journal_head_cache(void) retval = 0; if (!jbd2_journal_head_cache) { retval = -ENOMEM; - printk(KERN_EMERG "JBD: no memory for journal_head cache\n"); + printk(KERN_EMERG "JBD2: no memory for journal_head cache\n"); } return retval; } @@ -2383,7 +2391,7 @@ static void __exit journal_exit(void) #ifdef CONFIG_JBD2_DEBUG int n = atomic_read(&nr_journal_heads); if (n) - printk(KERN_EMERG "JBD: leaked %d journal_heads!\n", n); + printk(KERN_EMERG "JBD2: leaked %d journal_heads!\n", n); #endif jbd2_remove_debugfs_entry(); jbd2_remove_jbd_stats_proc_entry();