From: Jeff Mahoney <jeffm@suse.com>
To: Chris Mason <chris.mason@oracle.com>, David Sterba <dsterba@suse.com>
Cc: Linux Btrfs <linux-btrfs@vger.kernel.org>
Subject: [patch 60/66] btrfs: __btrfs_mod_ref should return void
Date: Mon, 24 Oct 2011 21:03:36 -0400 [thread overview]
Message-ID: <20111025010857.449132573@suse.com> (raw)
In-Reply-To: 20111025010236.322699279@suse.com
Now that process_func can't return an error, __btrfs_mod_ref has no more
error conditions and should return void.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
---
fs/btrfs/ctree.c | 30 ++++++++++--------------------
fs/btrfs/ctree.h | 8 ++++----
fs/btrfs/extent-tree.c | 34 +++++++++++++++-------------------
3 files changed, 29 insertions(+), 43 deletions(-)
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 2604ec4..bdaf3ad 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -224,7 +224,6 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans,
struct extent_buffer **cow_ret, u64 new_root_objectid)
{
struct extent_buffer *cow;
- int ret = 0;
int level;
struct btrfs_disk_key disk_key;
@@ -261,12 +260,9 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans,
WARN_ON(btrfs_header_generation(buf) > trans->transid);
if (new_root_objectid == BTRFS_TREE_RELOC_OBJECTID)
- ret = btrfs_inc_ref(trans, root, cow, 1);
+ btrfs_inc_ref(trans, root, cow, 1);
else
- ret = btrfs_inc_ref(trans, root, cow, 0);
-
- if (ret)
- return ret;
+ btrfs_inc_ref(trans, root, cow, 0);
btrfs_mark_buffer_dirty(cow);
*cow_ret = cow;
@@ -350,25 +346,21 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
if ((owner == root->root_key.objectid ||
root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) &&
!(flags & BTRFS_BLOCK_FLAG_FULL_BACKREF)) {
- ret = btrfs_inc_ref(trans, root, buf, 1);
- BUG_ON(ret);
+ btrfs_inc_ref(trans, root, buf, 1);
if (root->root_key.objectid ==
BTRFS_TREE_RELOC_OBJECTID) {
- ret = btrfs_dec_ref(trans, root, buf, 0);
- BUG_ON(ret);
- ret = btrfs_inc_ref(trans, root, cow, 1);
- BUG_ON(ret);
+ btrfs_dec_ref(trans, root, buf, 0);
+ btrfs_inc_ref(trans, root, cow, 1);
}
new_flags |= BTRFS_BLOCK_FLAG_FULL_BACKREF;
} else {
if (root->root_key.objectid ==
BTRFS_TREE_RELOC_OBJECTID)
- ret = btrfs_inc_ref(trans, root, cow, 1);
+ btrfs_inc_ref(trans, root, cow, 1);
else
- ret = btrfs_inc_ref(trans, root, cow, 0);
- BUG_ON(ret);
+ btrfs_inc_ref(trans, root, cow, 0);
}
if (new_flags != 0) {
ret = btrfs_set_disk_extent_flags(trans, root,
@@ -381,12 +373,10 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
if (flags & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
if (root->root_key.objectid ==
BTRFS_TREE_RELOC_OBJECTID)
- ret = btrfs_inc_ref(trans, root, cow, 1);
+ btrfs_inc_ref(trans, root, cow, 1);
else
- ret = btrfs_inc_ref(trans, root, cow, 0);
- BUG_ON(ret);
- ret = btrfs_dec_ref(trans, root, buf, 1);
- BUG_ON(ret);
+ btrfs_inc_ref(trans, root, cow, 0);
+ btrfs_dec_ref(trans, root, buf, 1);
}
clean_tree_block(trans, root, buf);
*last_ref = 1;
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index b791b8f..51f2840 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2193,10 +2193,10 @@ int btrfs_reserve_extent(struct btrfs_trans_handle *trans,
u64 empty_size, u64 hint_byte,
u64 search_end, struct btrfs_key *ins,
u64 data);
-int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct extent_buffer *buf, int full_backref);
-int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct extent_buffer *buf, int full_backref);
+void btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+ struct extent_buffer *buf, int full_backref);
+void btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+ struct extent_buffer *buf, int full_backref);
int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u64 num_bytes, u64 flags,
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index c2dcfd8..fac996d 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2551,10 +2551,10 @@ out:
return ret;
}
-static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- struct extent_buffer *buf,
- int full_backref, int inc)
+static void __btrfs_mod_ref(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct extent_buffer *buf,
+ int full_backref, int inc)
{
u64 bytenr;
u64 num_bytes;
@@ -2573,7 +2573,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
level = btrfs_header_level(buf);
if (!root->ref_cows && level == 0)
- return 0;
+ return;
if (inc)
process_func = btrfs_inc_extent_ref;
@@ -2610,19 +2610,18 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
ref_root, level - 1, 0);
}
}
- return 0;
}
-int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct extent_buffer *buf, int full_backref)
+void btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+ struct extent_buffer *buf, int full_backref)
{
- return __btrfs_mod_ref(trans, root, buf, full_backref, 1);
+ __btrfs_mod_ref(trans, root, buf, full_backref, 1);
}
-int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct extent_buffer *buf, int full_backref)
+void btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+ struct extent_buffer *buf, int full_backref)
{
- return __btrfs_mod_ref(trans, root, buf, full_backref, 0);
+ __btrfs_mod_ref(trans, root, buf, full_backref, 0);
}
static int write_one_cache_group(struct btrfs_trans_handle *trans,
@@ -5985,10 +5984,8 @@ static noinline int walk_down_proc(struct btrfs_trans_handle *trans,
/* wc->stage == UPDATE_BACKREF */
if (!(wc->flags[level] & flag)) {
BUG_ON(!path->locks[level]);
- ret = btrfs_inc_ref(trans, root, eb, 1);
- BUG_ON(ret);
- ret = btrfs_dec_ref(trans, root, eb, 0);
- BUG_ON(ret);
+ btrfs_inc_ref(trans, root, eb, 1);
+ btrfs_dec_ref(trans, root, eb, 0);
ret = btrfs_set_disk_extent_flags(trans, root, eb->start,
eb->len, flag, 0);
BUG_ON(ret);
@@ -6204,10 +6201,9 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans,
if (wc->refs[level] == 1) {
if (level == 0) {
if (wc->flags[level] & BTRFS_BLOCK_FLAG_FULL_BACKREF)
- ret = btrfs_dec_ref(trans, root, eb, 1);
+ btrfs_dec_ref(trans, root, eb, 1);
else
- ret = btrfs_dec_ref(trans, root, eb, 0);
- BUG_ON(ret);
+ btrfs_dec_ref(trans, root, eb, 0);
}
/* make block locked assertion in clean_tree_block happy */
if (!path->locks[level] &&
next prev parent reply other threads:[~2011-10-25 1:03 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-25 1:02 [patch 00/66] [pull] Error handling patchset v5 Jeff Mahoney
2011-10-25 1:02 ` [patch 01/66] btrfs: Add btrfs_panic() Jeff Mahoney
2011-10-25 1:02 ` [patch 02/66] btrfs: Catch locking failures in {set,clear,convert}_extent_bit Jeff Mahoney
2011-10-25 1:02 ` [patch 03/66] btrfs: Panic on bad rbtree operations Jeff Mahoney
2011-10-25 1:02 ` [patch 04/66] btrfs: Simplify btrfs_insert_root Jeff Mahoney
2011-10-25 1:02 ` [patch 05/66] btrfs: set_extent_bit error push-up Jeff Mahoney
2011-10-25 1:02 ` [patch 06/66] btrfs: lock_extent " Jeff Mahoney
2011-10-25 1:02 ` [patch 07/66] btrfs: clear_extent_bit " Jeff Mahoney
2011-10-26 15:10 ` David Sterba
2011-10-26 15:18 ` Jeff Mahoney
2011-10-26 16:09 ` David Sterba
2011-10-26 16:13 ` Jeff Mahoney
2011-10-31 12:30 ` Ilya Dryomov
2011-10-31 13:00 ` Chris Mason
2011-10-31 13:34 ` Jeff Mahoney
2011-10-27 12:00 ` David Sterba
2011-10-31 15:07 ` David Sterba
2011-10-31 15:41 ` [patch 07/66] btrfs: clear_extent_bit error push-up [other BUG hit] David Sterba
2011-10-25 1:02 ` [patch 08/66] btrfs: convert_extent_bit error push-up Jeff Mahoney
2011-10-25 1:02 ` [patch 09/66] btrfs: unlock_extent " Jeff Mahoney
2011-10-25 1:02 ` [patch 10/66] btrfs: pin_down_extent should return void Jeff Mahoney
2011-10-25 1:02 ` [patch 11/66] btrfs: btrfs_pin_extent error push-up Jeff Mahoney
2011-10-25 1:02 ` [patch 12/66] btrfs: btrfs_drop_snapshot should return int Jeff Mahoney
2011-10-25 1:02 ` [patch 13/66] btrfs: btrfs_start_transaction non-looped error push-up Jeff Mahoney
2011-10-25 1:02 ` [patch 14/66] btrfs: find_and_setup_root " Jeff Mahoney
2011-10-25 1:02 ` [patch 15/66] btrfs: btrfs_update_root " Jeff Mahoney
2011-10-25 1:02 ` [patch 16/66] btrfs: set_range_writeback should return void Jeff Mahoney
2011-10-25 1:02 ` [patch 17/66] btrfs: wait_on_state " Jeff Mahoney
2011-10-25 1:02 ` [patch 18/66] btrfs: wait_extent_bit " Jeff Mahoney
2011-10-25 1:02 ` [patch 19/66] btrfs: __unlock_for_delalloc " Jeff Mahoney
2011-10-25 1:02 ` [patch 20/66] btrfs: check_page_uptodate " Jeff Mahoney
2011-10-25 1:02 ` [patch 21/66] btrfs: check_page_locked " Jeff Mahoney
2011-10-25 1:02 ` [patch 22/66] btrfs: check_page_writeback " Jeff Mahoney
2011-10-25 1:02 ` [patch 23/66] btrfs: clear_extent_buffer_dirty " Jeff Mahoney
2011-10-25 1:03 ` [patch 24/66] btrfs: btrfs_cleanup_fs_uuids " Jeff Mahoney
2011-10-25 1:03 ` [patch 25/66] btrfs: run_scheduled_bios " Jeff Mahoney
2011-10-25 1:03 ` [patch 26/66] btrfs: btrfs_close_extra_devices " Jeff Mahoney
2011-10-25 1:03 ` [patch 27/66] btrfs: schedule_bio " Jeff Mahoney
2011-10-25 1:03 ` [patch 28/66] btrfs: fill_device_from_item " Jeff Mahoney
2011-10-25 1:03 ` [patch 29/66] btrfs: btrfs_queue_worker " Jeff Mahoney
2011-10-25 1:03 ` [patch 30/66] btrfs: run_ordered_completions " Jeff Mahoney
2011-10-25 1:03 ` [patch 31/66] btrfs: btrfs_stop_workers " Jeff Mahoney
2011-10-25 1:03 ` [patch 32/66] btrfs: btrfs_requeue_work " Jeff Mahoney
2011-10-25 1:03 ` [patch 33/66] btrfs: tree-log: btrfs_end_log_trans " Jeff Mahoney
2011-10-25 1:03 ` [patch 34/66] btrfs: tree-log: wait_for_writer " Jeff Mahoney
2011-10-25 1:03 ` [patch 35/66] btrfs: btrfs_init_compress " Jeff Mahoney
2011-10-25 1:03 ` [patch 36/66] btrfs: btrfs_invalidate_inodes " Jeff Mahoney
2011-10-25 1:03 ` [patch 37/66] btrfs: __setup_root " Jeff Mahoney
2011-10-25 1:03 ` [patch 38/66] btrfs: btrfs_destroy_delalloc_inodes " Jeff Mahoney
2011-10-25 1:03 ` [patch 39/66] btrfs: btrfs_prepare_extent_commit " Jeff Mahoney
2011-10-25 1:03 ` [patch 40/66] btrfs: btrfs_set_block_group_rw " Jeff Mahoney
2011-10-25 1:03 ` [patch 41/66] btrfs: setup_inline_extent_backref " Jeff Mahoney
2011-10-25 1:03 ` [patch 42/66] btrfs: btrfs_run_defrag_inodes " Jeff Mahoney
2011-10-25 1:03 ` [patch 43/66] btrfs: Simplify btrfs_submit_bio_hook Jeff Mahoney
2011-10-25 1:03 ` [patch 44/66] btrfs: Factor out tree->ops->merge_bio_hook call Jeff Mahoney
2011-10-25 1:03 ` [patch 45/66] btrfs: ->submit_bio_hook error push-up Jeff Mahoney
2011-10-25 1:03 ` [patch 46/66] btrfs: __add_reloc_root " Jeff Mahoney
2011-10-25 1:03 ` [patch 47/66] btrfs: fixup_low_keys should return void Jeff Mahoney
2011-10-25 1:03 ` [patch 48/66] btrfs: setup_items_for_insert " Jeff Mahoney
2011-10-25 1:03 ` [patch 49/66] btrfs: del_ptr " Jeff Mahoney
2011-10-25 1:03 ` [patch 50/66] btrfs: insert_ptr " Jeff Mahoney
2011-10-25 1:03 ` [patch 51/66] btrfs: add_delayed_ref_head " Jeff Mahoney
2011-10-25 1:03 ` [patch 52/66] btrfs: add_delayed_tree_ref " Jeff Mahoney
2011-10-25 1:03 ` [patch 53/66] btrfs: add_delayed_data_ref " Jeff Mahoney
2011-10-25 1:03 ` [patch 54/66] btrfs: Fix kfree of member instead of structure Jeff Mahoney
2011-10-25 1:03 ` [patch 55/66] btrfs: Use mempools for delayed refs Jeff Mahoney
2011-10-25 1:03 ` [patch 56/66] btrfs: Delayed ref mempool functions should return void Jeff Mahoney
2011-10-25 1:03 ` [patch 57/66] btrfs: btrfs_inc_extent_ref void return prep Jeff Mahoney
2011-10-25 1:03 ` [patch 58/66] btrfs: btrfs_free_extent " Jeff Mahoney
2011-10-25 1:03 ` [patch 59/66] btrfs: __btrfs_mod_refs process_func should return void Jeff Mahoney
2011-10-25 1:03 ` Jeff Mahoney [this message]
2011-10-25 1:03 ` [patch 61/66] btrfs: clean_tree_block " Jeff Mahoney
2011-10-25 1:03 ` [patch 62/66] btrfs: btrfs_truncate_item " Jeff Mahoney
2011-10-25 1:03 ` [patch 63/66] btrfs: btrfs_extend_item " Jeff Mahoney
2011-10-25 1:03 ` [patch 64/66] btrfs: end_compressed_writeback " Jeff Mahoney
2011-10-25 1:03 ` [patch 65/66] btrfs: copy_for_split " Jeff Mahoney
2011-10-25 1:03 ` [patch 66/66] btrfs: update_inline_extent_backref " Jeff Mahoney
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