From: Eric Sesterhenn Date: Tue, 3 Oct 2006 21:36:38 +0000 (+0200) Subject: BUG_ON conversion for fs/reiserfs X-Git-Tag: v2.6.19-rc1~165^2~5 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=14a61442c2203d2a49f2f954bfa9259c0ddac1aa;p=linux-2.6 BUG_ON conversion for fs/reiserfs This patch converts several if () BUG(); construct to BUG_ON(); which occupies less space, uses unlikely and is safer when BUG() is disabled. S_ISREG() has no side effects, so the conversion is safe. Signed-off-by: Eric Sesterhenn Signed-off-by: Adrian Bunk --- diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c index 41f24369e4..c093642fb9 100644 --- a/fs/reiserfs/file.c +++ b/fs/reiserfs/file.c @@ -38,8 +38,7 @@ static int reiserfs_file_release(struct inode *inode, struct file *filp) int err; int jbegin_failure = 0; - if (!S_ISREG(inode->i_mode)) - BUG(); + BUG_ON(!S_ISREG(inode->i_mode)); /* fast out for when nothing needs to be done */ if ((atomic_read(&inode->i_count) > 1 || @@ -125,8 +124,7 @@ static int reiserfs_sync_file(struct file *p_s_filp, int n_err; int barrier_done; - if (!S_ISREG(p_s_inode->i_mode)) - BUG(); + BUG_ON(!S_ISREG(p_s_inode->i_mode)); n_err = sync_mapping_buffers(p_s_inode->i_mapping); reiserfs_write_lock(p_s_inode->i_sb); barrier_done = reiserfs_commit_for_inode(p_s_inode); diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c index 7a88adbcee..b9b423b22a 100644 --- a/fs/reiserfs/item_ops.c +++ b/fs/reiserfs/item_ops.c @@ -75,8 +75,7 @@ static int sd_create_vi(struct virtual_node *vn, static int sd_check_left(struct virtual_item *vi, int free, int start_skip, int end_skip) { - if (start_skip || end_skip) - BUG(); + BUG_ON(start_skip || end_skip); return -1; } @@ -87,8 +86,7 @@ static int sd_check_right(struct virtual_item *vi, int free) static int sd_part_size(struct virtual_item *vi, int first, int count) { - if (count) - BUG(); + BUG_ON(count); return 0; } @@ -476,8 +474,7 @@ static int direntry_create_vi(struct virtual_node *vn, vi->vi_index = TYPE_DIRENTRY; - if (!(vi->vi_ih) || !vi->vi_item) - BUG(); + BUG_ON(!(vi->vi_ih) || !vi->vi_item); dir_u->flags = 0; if (le_ih_k_offset(vi->vi_ih) == DOT_OFFSET) @@ -575,8 +572,7 @@ static int direntry_check_right(struct virtual_item *vi, int free) free -= dir_u->entry_sizes[i]; entries++; } - if (entries == dir_u->entry_count) - BUG(); + BUG_ON(entries == dir_u->entry_count); /* "." and ".." can not be separated from each other */ if ((dir_u->flags & DIRENTRY_VI_FIRST_DIRENTRY_ITEM) diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index e6b5ccf23f..ad8cbc4988 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -718,8 +718,7 @@ static int add_to_chunk(struct buffer_chunk *chunk, struct buffer_head *bh, spinlock_t * lock, void (fn) (struct buffer_chunk *)) { int ret = 0; - if (chunk->nr >= CHUNK_SIZE) - BUG(); + BUG_ON(chunk->nr >= CHUNK_SIZE); chunk->bh[chunk->nr++] = bh; if (chunk->nr >= CHUNK_SIZE) { ret = 1; @@ -788,8 +787,7 @@ static inline int __add_jh(struct reiserfs_journal *j, struct buffer_head *bh, /* buffer must be locked for __add_jh, should be able to have * two adds at the same time */ - if (bh->b_private) - BUG(); + BUG_ON(bh->b_private); jh->bh = bh; bh->b_private = jh; } @@ -2967,8 +2965,7 @@ static int do_journal_begin_r(struct reiserfs_transaction_handle *th, int retval; reiserfs_check_lock_depth(p_s_sb, "journal_begin"); - if (nblocks > journal->j_trans_max) - BUG(); + BUG_ON(nblocks > journal->j_trans_max); PROC_INFO_INC(p_s_sb, journal.journal_being); /* set here for journal_join */ @@ -3084,9 +3081,8 @@ struct reiserfs_transaction_handle *reiserfs_persistent_transaction(struct if (reiserfs_transaction_running(s)) { th = current->journal_info; th->t_refcount++; - if (th->t_refcount < 2) { - BUG(); - } + BUG_ON(th->t_refcount < 2); + return th; } th = kmalloc(sizeof(struct reiserfs_transaction_handle), GFP_NOFS); @@ -3126,9 +3122,7 @@ static int journal_join(struct reiserfs_transaction_handle *th, ** pointer */ th->t_handle_save = cur_th; - if (cur_th && cur_th->t_refcount > 1) { - BUG(); - } + BUG_ON(cur_th && cur_th->t_refcount > 1); return do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_JOIN); } @@ -3141,9 +3135,7 @@ int journal_join_abort(struct reiserfs_transaction_handle *th, ** pointer */ th->t_handle_save = cur_th; - if (cur_th && cur_th->t_refcount > 1) { - BUG(); - } + BUG_ON(cur_th && cur_th->t_refcount > 1); return do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_ABORT); } @@ -3178,8 +3170,7 @@ int journal_begin(struct reiserfs_transaction_handle *th, current->journal_info = th; } ret = do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_REG); - if (current->journal_info != th) - BUG(); + BUG_ON(current->journal_info != th); /* I guess this boils down to being the reciprocal of clm-2100 above. * If do_journal_begin_r fails, we need to put it back, since journal_end @@ -3324,8 +3315,7 @@ int journal_end(struct reiserfs_transaction_handle *th, /* we aren't allowed to close a nested transaction on a different ** filesystem from the one in the task struct */ - if (cur_th->t_super != th->t_super) - BUG(); + BUG_ON(cur_th->t_super != th->t_super); if (th != cur_th) { memcpy(current->journal_info, th, sizeof(*th)); @@ -3444,9 +3434,7 @@ int journal_end_sync(struct reiserfs_transaction_handle *th, BUG_ON(!th->t_trans_id); /* you can sync while nested, very, very bad */ - if (th->t_refcount > 1) { - BUG(); - } + BUG_ON(th->t_refcount > 1); if (journal->j_len == 0) { reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1); @@ -3556,9 +3544,8 @@ static int check_journal_end(struct reiserfs_transaction_handle *th, ** will be dealt with by next transaction that actually writes something, but should be taken ** care of in this trans */ - if (journal->j_len == 0) { - BUG(); - } + BUG_ON(journal->j_len == 0); + /* if wcount > 0, and we are called to with flush or commit_now, ** we wait on j_join_wait. We will wake up when the last writer has ** finished the transaction, and started it on its way to the disk. @@ -3592,9 +3579,8 @@ static int check_journal_end(struct reiserfs_transaction_handle *th, unlock_journal(p_s_sb); } } - if (journal->j_trans_id == trans_id) { - BUG(); - } + BUG_ON(journal->j_trans_id == trans_id); + if (commit_now && journal_list_still_alive(p_s_sb, trans_id) && wait_on_commit) { @@ -4074,9 +4060,7 @@ static int do_journal_end(struct reiserfs_transaction_handle *th, set_commit_trans_len(commit, journal->j_len); /* special check in case all buffers in the journal were marked for not logging */ - if (journal->j_len == 0) { - BUG(); - } + BUG_ON(journal->j_len == 0); /* we're about to dirty all the log blocks, mark the description block * dirty now too. Don't mark the commit block dirty until all the @@ -4173,8 +4157,7 @@ static int do_journal_end(struct reiserfs_transaction_handle *th, journal, jl, &jl->j_tail_bh_list); lock_kernel(); } - if (!list_empty(&jl->j_tail_bh_list)) - BUG(); + BUG_ON(!list_empty(&jl->j_tail_bh_list)); up(&jl->j_commit_lock); /* honor the flush wishes from the caller, simple commits can diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c index 16e9cff8f1..abde1edc22 100644 --- a/fs/reiserfs/namei.c +++ b/fs/reiserfs/namei.c @@ -67,8 +67,7 @@ inline void set_de_name_and_namelen(struct reiserfs_dir_entry *de) { struct reiserfs_de_head *deh = de->de_deh + de->de_entry_num; - if (de->de_entry_num >= ih_entry_count(de->de_ih)) - BUG(); + BUG_ON(de->de_entry_num >= ih_entry_count(de->de_ih)); de->de_entrylen = entry_length(de->de_bh, de->de_ih, de->de_entry_num); de->de_namelen = de->de_entrylen - (de_with_sd(deh) ? SD_SIZE : 0); @@ -80,8 +79,7 @@ inline void set_de_name_and_namelen(struct reiserfs_dir_entry *de) // what entry points to static inline void set_de_object_key(struct reiserfs_dir_entry *de) { - if (de->de_entry_num >= ih_entry_count(de->de_ih)) - BUG(); + BUG_ON(de->de_entry_num >= ih_entry_count(de->de_ih)); de->de_dir_id = deh_dir_id(&(de->de_deh[de->de_entry_num])); de->de_objectid = deh_objectid(&(de->de_deh[de->de_entry_num])); } @@ -90,8 +88,7 @@ static inline void store_de_entry_key(struct reiserfs_dir_entry *de) { struct reiserfs_de_head *deh = de->de_deh + de->de_entry_num; - if (de->de_entry_num >= ih_entry_count(de->de_ih)) - BUG(); + BUG_ON(de->de_entry_num >= ih_entry_count(de->de_ih)); /* store key of the found entry */ de->de_entry_key.version = KEY_FORMAT_3_5; diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c index 8b9b131271..5240abe1a7 100644 --- a/fs/reiserfs/stree.c +++ b/fs/reiserfs/stree.c @@ -1476,9 +1476,7 @@ static int maybe_indirect_to_direct(struct reiserfs_transaction_handle *th, int n_block_size = p_s_sb->s_blocksize; int cut_bytes; BUG_ON(!th->t_trans_id); - - if (n_new_file_size != p_s_inode->i_size) - BUG(); + BUG_ON(n_new_file_size != p_s_inode->i_size); /* the page being sent in could be NULL if there was an i/o error ** reading in the last block. The user will hit problems trying to