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authorEric Sesterhenn <snakebyte@gmx.de>2006-10-03 23:36:38 +0200
committerAdrian Bunk <bunk@stusta.de>2006-10-03 23:36:38 +0200
commit14a61442c2203d2a49f2f954bfa9259c0ddac1aa (patch)
treec146effc3dbaa41dd6fdd01e6f3f8fcdd63ad705 /fs/reiserfs/journal.c
parent8d8f3cbe777e014123bfa63f2cebd6eb29032225 (diff)
downloadop-kernel-dev-14a61442c2203d2a49f2f954bfa9259c0ddac1aa.zip
op-kernel-dev-14a61442c2203d2a49f2f954bfa9259c0ddac1aa.tar.gz
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 <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
Diffstat (limited to 'fs/reiserfs/journal.c')
-rw-r--r--fs/reiserfs/journal.c49
1 files changed, 16 insertions, 33 deletions
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index e6b5ccf..ad8cbc4 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
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