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ocfs2: Don't check for NULL before brelse() 

This is pointless as brelse() already does the check.

Signed-off-by: Mark Fasheh
This commit is contained in:
Mark Fasheh 2008-10-07 14:25:16 -07:00
parent fd8351f83d
commit a81cb88b64
12 changed files with 74 additions and 147 deletions
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33
fs/ocfs2/alloc.c
View File

@ -719,8 +719,7 @@ int ocfs2_num_free_extents(struct ocfs2_super *osb,
retval = le16_to_cpu(el->l_count) - le16_to_cpu(el->l_next_free_rec);
bail:
if (eb_bh)
brelse(eb_bh);
brelse(eb_bh);
mlog_exit(retval);
return retval;
@ -806,8 +805,7 @@ static int ocfs2_create_new_meta_bhs(struct ocfs2_super *osb,
bail:
if (status < 0) {
for(i = 0; i < wanted; i++) {
if (bhs[i])
brelse(bhs[i]);
brelse(bhs[i]);
bhs[i] = NULL;
}
}
@ -1017,8 +1015,7 @@ static int ocfs2_add_branch(struct ocfs2_super *osb,
bail:
if (new_eb_bhs) {
for (i = 0; i < new_blocks; i++)
if (new_eb_bhs[i])
brelse(new_eb_bhs[i]);
brelse(new_eb_bhs[i]);
kfree(new_eb_bhs);
}
@ -1116,8 +1113,7 @@ static int ocfs2_shift_tree_depth(struct ocfs2_super *osb,
new_eb_bh = NULL;
status = 0;
bail:
if (new_eb_bh)
brelse(new_eb_bh);
brelse(new_eb_bh);
mlog_exit(status);
return status;
@ -1177,10 +1173,8 @@ static int ocfs2_find_branch_target(struct ocfs2_super *osb,
goto bail;
}
if (bh) {
brelse(bh);
bh = NULL;
}
brelse(bh);
bh = NULL;
status = ocfs2_read_block(osb, blkno, &bh, OCFS2_BH_CACHED,
inode);
@ -1199,8 +1193,7 @@ static int ocfs2_find_branch_target(struct ocfs2_super *osb,
if (le16_to_cpu(el->l_next_free_rec) <
le16_to_cpu(el->l_count)) {
if (lowest_bh)
brelse(lowest_bh);
brelse(lowest_bh);
lowest_bh = bh;
get_bh(lowest_bh);
}
@ -1214,8 +1207,7 @@ static int ocfs2_find_branch_target(struct ocfs2_super *osb,
*target_bh = lowest_bh;
bail:
if (bh)
brelse(bh);
brelse(bh);
mlog_exit(status);
return status;
@ -4471,8 +4463,7 @@ int ocfs2_insert_extent(struct ocfs2_super *osb,
ocfs2_extent_map_insert_rec(inode, &rec);
bail:
if (last_eb_bh)
brelse(last_eb_bh);
brelse(last_eb_bh);
mlog_exit(status);
return status;
@ -5677,8 +5668,7 @@ int ocfs2_begin_truncate_log_recovery(struct ocfs2_super *osb,
bail:
if (tl_inode)
iput(tl_inode);
if (tl_bh)
brelse(tl_bh);
brelse(tl_bh);
if (status < 0 && (*tl_copy)) {
kfree(*tl_copy);
@ -7115,8 +7105,7 @@ static void ocfs2_free_truncate_context(struct ocfs2_truncate_context *tc)
mlog(ML_NOTICE,
"Truncate completion has non-empty dealloc context\n");
if (tc->tc_last_eb_bh)
brelse(tc->tc_last_eb_bh);
brelse(tc->tc_last_eb_bh);
kfree(tc);
}

3
fs/ocfs2/aops.c
View File

@ -128,8 +128,7 @@ static int ocfs2_symlink_get_block(struct inode *inode, sector_t iblock,
err = 0;
bail:
if (bh)
brelse(bh);
brelse(bh);
mlog_exit(err);
return err;

24
fs/ocfs2/dir.c
View File

@ -716,8 +716,7 @@ static int ocfs2_dir_foreach_blk_el(struct inode *inode,
for (i = ra_sectors >> (sb->s_blocksize_bits - 9);
i > 0; i--) {
tmp = ocfs2_bread(inode, ++blk, &err, 1);
if (tmp)
brelse(tmp);
brelse(tmp);
}
last_ra_blk = blk;
ra_sectors = 8;
@ -899,10 +898,8 @@ int ocfs2_find_files_on_disk(const char *name,
leave:
if (status < 0) {
*dirent = NULL;
if (*dirent_bh) {
brelse(*dirent_bh);
*dirent_bh = NULL;
}
brelse(*dirent_bh);
*dirent_bh = NULL;
}
mlog_exit(status);
@ -951,8 +948,7 @@ int ocfs2_check_dir_for_entry(struct inode *dir,
ret = 0;
bail:
if (dirent_bh)
brelse(dirent_bh);
brelse(dirent_bh);
mlog_exit(ret);
return ret;
@ -1127,8 +1123,7 @@ static int ocfs2_fill_new_dir_el(struct ocfs2_super *osb,
status = 0;
bail:
if (new_bh)
brelse(new_bh);
brelse(new_bh);
mlog_exit(status);
return status;
@ -1574,8 +1569,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
if (meta_ac)
ocfs2_free_alloc_context(meta_ac);
if (new_bh)
brelse(new_bh);
brelse(new_bh);
mlog_exit(status);
return status;
@ -1702,8 +1696,7 @@ static int ocfs2_find_dir_space_el(struct inode *dir, const char *name,
status = 0;
bail:
if (bh)
brelse(bh);
brelse(bh);
mlog_exit(status);
return status;
@ -1762,7 +1755,6 @@ int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb,
*ret_de_bh = bh;
bh = NULL;
out:
if (bh)
brelse(bh);
brelse(bh);
return ret;
}

9
fs/ocfs2/file.c
View File

@ -671,10 +671,8 @@ static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
restart_func = 0;
goto restart_all;
}
if (bh) {
brelse(bh);
bh = NULL;
}
brelse(bh);
bh = NULL;
mlog_exit(status);
return status;
@ -991,8 +989,7 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
if (size_change)
ocfs2_rw_unlock(inode, 1);
bail:
if (bh)
brelse(bh);
brelse(bh);
mlog_exit(status);
return status;

7
fs/ocfs2/inode.c
View File

@ -1174,10 +1174,9 @@ struct buffer_head *ocfs2_bread(struct inode *inode,
return bh;
fail:
if (bh) {
brelse(bh);
bh = NULL;
}
brelse(bh);
bh = NULL;
*err = -EIO;
return NULL;
}

3
fs/ocfs2/ioctl.c
View File

@ -102,8 +102,7 @@ static int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
bail:
mutex_unlock(&inode->i_mutex);
if (bh)
brelse(bh);
brelse(bh);
mlog_exit(status);
return status;

9
fs/ocfs2/journal.c
View File

@ -554,8 +554,7 @@ int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty)
if (status < 0) {
if (inode_lock)
ocfs2_inode_unlock(inode, 1);
if (bh != NULL)
brelse(bh);
brelse(bh);
if (inode) {
OCFS2_I(inode)->ip_open_count--;
iput(inode);
@ -869,8 +868,7 @@ static int ocfs2_force_read_journal(struct inode *inode)
bail:
for(i = 0; i < CONCURRENT_JOURNAL_FILL; i++)
if (bhs[i])
brelse(bhs[i]);
brelse(bhs[i]);
mlog_exit(status);
return status;
}
@ -1286,8 +1284,7 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb,
if (inode)
iput(inode);
if (bh)
brelse(bh);
brelse(bh);
mlog_exit(status);
return status;

15
fs/ocfs2/localalloc.c
View File

@ -294,8 +294,7 @@ int ocfs2_load_local_alloc(struct ocfs2_super *osb)
bail:
if (status < 0)
if (alloc_bh)
brelse(alloc_bh);
brelse(alloc_bh);
if (inode)
iput(inode);
@ -411,8 +410,7 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
ocfs2_commit_trans(osb, handle);
out_unlock:
if (main_bm_bh)
brelse(main_bm_bh);
brelse(main_bm_bh);
ocfs2_inode_unlock(main_bm_inode, 1);
@ -488,8 +486,7 @@ int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
*alloc_copy = NULL;
}
if (alloc_bh)
brelse(alloc_bh);
brelse(alloc_bh);
if (inode) {
mutex_unlock(&inode->i_mutex);
@ -557,8 +554,7 @@ int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb,
out_mutex:
mutex_unlock(&main_bm_inode->i_mutex);
if (main_bm_bh)
brelse(main_bm_bh);
brelse(main_bm_bh);
iput(main_bm_inode);
@ -1281,8 +1277,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
if (handle)
ocfs2_commit_trans(osb, handle);
if (main_bm_bh)
brelse(main_bm_bh);
brelse(main_bm_bh);
if (main_bm_inode)
iput(main_bm_inode);

83
fs/ocfs2/namei.c
View File

@ -328,14 +328,9 @@ static int ocfs2_mknod(struct inode *dir,
if (status == -ENOSPC)
mlog(0, "Disk is full\n");
if (new_fe_bh)
brelse(new_fe_bh);
if (de_bh)
brelse(de_bh);
if (parent_fe_bh)
brelse(parent_fe_bh);
brelse(new_fe_bh);
brelse(de_bh);
brelse(parent_fe_bh);
if ((status < 0) && inode)
iput(inode);
@ -648,12 +643,9 @@ static int ocfs2_link(struct dentry *old_dentry,
out:
ocfs2_inode_unlock(dir, 1);
if (de_bh)
brelse(de_bh);
if (fe_bh)
brelse(fe_bh);
if (parent_fe_bh)
brelse(parent_fe_bh);
brelse(de_bh);
brelse(fe_bh);
brelse(parent_fe_bh);
mlog_exit(err);
@ -852,17 +844,10 @@ static int ocfs2_unlink(struct inode *dir,
iput(orphan_dir);
}
if (fe_bh)
brelse(fe_bh);
if (dirent_bh)
brelse(dirent_bh);
if (parent_node_bh)
brelse(parent_node_bh);
if (orphan_entry_bh)
brelse(orphan_entry_bh);
brelse(fe_bh);
brelse(dirent_bh);
brelse(parent_node_bh);
brelse(orphan_entry_bh);
mlog_exit(status);
@ -1373,24 +1358,15 @@ static int ocfs2_rename(struct inode *old_dir,
if (new_inode)
iput(new_inode);
if (newfe_bh)
brelse(newfe_bh);
if (old_inode_bh)
brelse(old_inode_bh);
if (old_dir_bh)
brelse(old_dir_bh);
if (new_dir_bh)
brelse(new_dir_bh);
if (new_de_bh)
brelse(new_de_bh);
if (old_de_bh)
brelse(old_de_bh);
if (old_inode_de_bh)
brelse(old_inode_de_bh);
if (orphan_entry_bh)
brelse(orphan_entry_bh);
if (insert_entry_bh)
brelse(insert_entry_bh);
brelse(newfe_bh);
brelse(old_inode_bh);
brelse(old_dir_bh);
brelse(new_dir_bh);
brelse(new_de_bh);
brelse(old_de_bh);
brelse(old_inode_de_bh);
brelse(orphan_entry_bh);
brelse(insert_entry_bh);
mlog_exit(status);
@ -1493,8 +1469,7 @@ static int ocfs2_create_symlink_data(struct ocfs2_super *osb,
if (bhs) {
for(i = 0; i < blocks; i++)
if (bhs[i])
brelse(bhs[i]);
brelse(bhs[i]);
kfree(bhs);
}
@ -1660,12 +1635,9 @@ static int ocfs2_symlink(struct inode *dir,
ocfs2_inode_unlock(dir, 1);
if (new_fe_bh)
brelse(new_fe_bh);
if (parent_fe_bh)
brelse(parent_fe_bh);
if (de_bh)
brelse(de_bh);
brelse(new_fe_bh);
brelse(parent_fe_bh);
brelse(de_bh);
if (inode_ac)
ocfs2_free_alloc_context(inode_ac);
if (data_ac)
@ -1760,8 +1732,7 @@ static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
iput(orphan_dir_inode);
}
if (orphan_dir_bh)
brelse(orphan_dir_bh);
brelse(orphan_dir_bh);
mlog_exit(status);
return status;
@ -1830,8 +1801,7 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
(unsigned long long)OCFS2_I(inode)->ip_blkno, osb->slot_num);
leave:
if (orphan_dir_bh)
brelse(orphan_dir_bh);
brelse(orphan_dir_bh);
mlog_exit(status);
return status;
@ -1899,8 +1869,7 @@ int ocfs2_orphan_del(struct ocfs2_super *osb,
}
leave:
if (target_de_bh)
brelse(target_de_bh);
brelse(target_de_bh);
mlog_exit(status);
return status;

29
fs/ocfs2/suballoc.c
View File

@ -130,10 +130,8 @@ void ocfs2_free_ac_resource(struct ocfs2_alloc_context *ac)
iput(inode);
ac->ac_inode = NULL;
}
if (ac->ac_bh) {
brelse(ac->ac_bh);
ac->ac_bh = NULL;
}
brelse(ac->ac_bh);
ac->ac_bh = NULL;
}
void ocfs2_free_alloc_context(struct ocfs2_alloc_context *ac)
@ -401,8 +399,7 @@ static int ocfs2_block_group_alloc(struct ocfs2_super *osb,
if (ac)
ocfs2_free_alloc_context(ac);
if (bg_bh)
brelse(bg_bh);
brelse(bg_bh);
mlog_exit(status);
return status;
@ -494,8 +491,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
get_bh(bh);
ac->ac_bh = bh;
bail:
if (bh)
brelse(bh);
brelse(bh);
mlog_exit(status);
return status;
@ -1269,10 +1265,10 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
&tmp_bits)) == -ENOSPC) {
if (!bg->bg_next_group)
break;
if (prev_group_bh) {
brelse(prev_group_bh);
prev_group_bh = NULL;
}
brelse(prev_group_bh);
prev_group_bh = NULL;
next_group = le64_to_cpu(bg->bg_next_group);
prev_group_bh = group_bh;
group_bh = NULL;
@ -1367,10 +1363,8 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
*bg_blkno = le64_to_cpu(bg->bg_blkno);
*bits_left = le16_to_cpu(bg->bg_free_bits_count);
bail:
if (group_bh)
brelse(group_bh);
if (prev_group_bh)
brelse(prev_group_bh);
brelse(group_bh);
brelse(prev_group_bh);
mlog_exit(status);
return status;
@ -1844,8 +1838,7 @@ int ocfs2_free_suballoc_bits(handle_t *handle,
}
bail:
if (group_bh)
brelse(group_bh);
brelse(group_bh);
mlog_exit(status);
return status;

3
fs/ocfs2/super.c
View File

@ -762,8 +762,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
return status;
read_super_error:
if (bh != NULL)
brelse(bh);
brelse(bh);
if (inode)
iput(inode);

3
fs/ocfs2/symlink.c
View File

@ -158,8 +158,7 @@ static void *ocfs2_follow_link(struct dentry *dentry,
kunmap(page);
page_cache_release(page);
}
if (bh)
brelse(bh);
brelse(bh);
return ERR_PTR(status);
}