Age | Commit message (Collapse) | Author |
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Do not duplicate the cleanup after failed initialization
in btrfs_bioset_init() and reuse the exit function btrfs_bioset_exit().
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Using 'i' for a parameter is confusing and conforming to current
preferences, so rename it to 'iter'.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Currently we reject large folios for defrag gracefully, but the
implementation itself is already mostly large folios compatible.
There are several parts of defrag in btrfs:
- Extent map checking
Aka, defrag_collect_targets(), which prepares a list of target ranges
that should be defragged.
This part is completely folio unrelated, thus it doesn't care about
the folio size.
- Target folio preparation
Aka, defrag_prepare_one_folio(), which lock and read (if needed) the
target folio.
Since folio read and lock are already supporting large folios, this
part needs only minor changes.
- Redirty the target range of the folio
This is already done in a way supporting large folios.
So it's pretty straightforward to enable large folios for defrag:
- Do not reject large folios for experimental builds
This affects the large folio check inside defrag_prepare_one_folio().
- Wait for ordered extents of the whole folio in
defrag_prepare_one_folio()
- Lock the whole extent range for all involved folios in
defrag_one_range()
- Allow the folios[] array to be partially empty
Since we can have large folios, folios[] will not always be full.
This affects:
* How to allocate folios in defrag_one_range()
Now we cannot use page index, but use the end position of the folio
as an iterator.
* How to free the folios[] array
If we hit an empty slot, it means we have large folios and already
hit the end of the array.
* How to mark the range dirty
Instead of use page index directly, we have to go through each
folio, and check if the folio covers the defrag target inside
defrag_one_locked_target().
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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All compression algorithms inside btrfs are not supporting large folios
due to the following points:
- btrfs_calc_input_length() is assuming page sized folio
- kmap_local_folio() usages are using offset_in_page()
Prepare them to support large data folios by:
- Add a folio parameter to btrfs_calc_input_length()
And use that folio parameter to calculate the correct length.
Since we're here, also add extra ASSERT()s to make sure the parameter
@cur is inside the folio range.
This affects only zlib and zstd. Lzo compresses at most one block at a
time, thus not affected.
- Use offset_in_folio() to calculate the kmap_local_folio() offset
This affects all 3 algorithms.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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There's no need to have a double underscore prefix as there's no variant
of the function without it.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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There's no need to have a double underscore prefix as there's no variant
of the function without it anymore.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Rename all the exported functions from extent_map.h that don't have a
'btrfs_' prefix in their names, so that they are consistent with all the
other functions, to make it clear they are btrfs specific functions and
to avoid potential name collisions in the future with functions defined
elsewhere in the kernel.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported and don't have a 'btrfs_' prefix in their
names, which goes against coding style conventions. Rename them to have
such prefix, making it clear they are from btrfs and avoiding potential
collisions in the future with functions defined elsewhere outside btrfs.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported and don't have a 'btrfs_' prefix in their
names, which goes against coding style conventions. Rename them to have
such prefix, making it clear they are from btrfs and avoiding potential
collisions in the future with functions defined elsewhere outside btrfs.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported and don't have a 'btrfs_' prefix in their
names, which goes against coding style conventions. Rename them to have
such prefix, making it clear they are from btrfs and avoiding potential
collisions in the future with functions defined elsewhere outside btrfs.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Most of our tracepoints have the 'btrfs_' prefix in their names but a few
of them are missing, making it inconsistent. So add the prefix to the ones
that are missing it, creating consistency, making it clear for users these
are btrfs tracepoints and eventually avoid name collisions with other
tracepoints defined by other kernel subsystems.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The function needs only to return true or false, so there's no need to
return an integer. Currently it returns 0 when a range with the given
bits is set and 1 when not found, which is a bit counter intuitive too.
So change the function to return a bool instead, returning true when a
range is found and false otherwise. Update the function's documentation
to mention the return value too.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Now that set_extent_bit() was renamed to btrfs_set_extent_bit(), there's
no need to have a __set_extent_bit() function, we can just remove the
double underscore prefix, which we try to avoid according to the coding
style conventions.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Rename the remaning exported functions that don't have a 'btrfs_' prefix.
By convention exported functions should have such prefix to make it clear
they are btrfs specific and to avoid collisions with functions from
elsewhere in the kernel.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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This is an exported function so it should have a 'btrfs_' prefix by
convention, to make it clear it's btrfs specific and to avoid collisions
with functions from elsewhere in the kernel.
Rename the function to add 'btrfs_' prefix to it.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported so they should have a 'btrfs_' prefix by
convention, to make it clear they are btrfs specific and to avoid
collisions with functions from elsewhere in the kernel.
So add a 'btrfs_' prefix to their names to make it clear they are from
btrfs.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported so they should have a 'btrfs_' prefix by
convention, to make it clear they are btrfs specific and to avoid
collisions with functions from elsewhere in the kernel.
So add a 'btrfs_' prefix to their name to make it clear they are from
btrfs.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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We've tested that we are dealing with io tree that is associated to an
inode (its owner is IO_TREE_INODE_IO), so there's no need to call
btrfs_extent_io_tree_to_inode() in a separate line and we just assign
tree->inode to the local inode variable when we declare it.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported so they should have a 'btrfs_' prefix by
convention, to make it clear they are btrfs specific and to avoid
collisions with functions from elsewhere in the kernel.
So add a 'btrfs_' prefix to their name to make it clear they are from
btrfs. Also remove the 'const' suffix from extent_io_tree_to_inode_const()
since there's no non-const variant anymore and makes the naming consistent
with extent_io_tree_to_fs_info() (no 'const' suffix and returns a const
pointer).
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported so they should have a 'btrfs_' prefix by
convention, to make it clear they are btrfs specific and to avoid
collisions with functions from elsewhere in the kernel.
So add a 'btrfs_' prefix to their name to make it clear they are from
btrfs.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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This is an exported function so it should have a 'btrfs_' prefix by
convention, to make it clear it's btrfs specific and to avoid collisions
with functions from elsewhere in the kernel.
So rename it to btrfs_set_extent_bit().
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported so they should have a 'btrfs_' prefix by
convention, to make it clear they are btrfs specific and to avoid
collisions with functions from elsewhere in the kernel. One of them has a
double underscore prefix which is also discouraged.
So remove double underscore prefix where applicable and add a 'btrfs_'
prefix to their name to make it clear they are from btrfs.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported so they should have a 'btrfs_' prefix by
convention, to make it clear they are btrfs specific and to avoid
collisions with functions from elsewhere in the kernel. Their double
underscore prefix is also discouraged.
So remove their double underscore prefix, add a 'btrfs_' prefix to their
name to make it clear they are from btrfs and a '_bits' suffix to avoid
collision with btrfs_lock_extent() and btrfs_try_lock_extent().
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported so they should have a 'btrfs_' prefix by
convention, to make it clear they are btrfs specific and to avoid
collisions with functions from elsewhere in the kernel. So add a prefix to
their name.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions are exported so they should have a 'btrfs_' prefix by
convention, to make it clear they are btrfs specific and to avoid
collisions with functions from elsewhere in the kernel. So add a prefix to
their name.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These trace events don't have the 'btrfs_' prefix in their name, unlike
the other trace events from extent-io-tree.c. So add the prefix to make
them consistent and follow coding style conventions too.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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These functions aren't used outside extent-io-tree.c, but yet one of them
(extent_io_tree_to_inode()) is unnecessarily exported in the header.
Furthermore their single use is in a pattern like this:
if (is_inode_io_tree(tree))
foo(extent_io_tree_to_inode(tree), ...);
So we're effectively unnecessarily adding more indirection, checking
twice if tree->owner == IO_TREE_INODE_IO before getting the inode and
doing a non-inline function call to get tree->inode.
Simplify this by removing these helper functions and instead doing
thing like this:
if (tree->owner == IO_TREE_INODE_IO)
foo(tree->inode, ...);
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Add more unlikely annotations to branches that lead to EUCLEAN, overall
in the tree checker this helps to reorder instructions for the no-error
case.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Currently we use the following pattern to detect if the folio contains
the end of a file:
if (folio->index == end_index)
folio_zero_range();
But that only works if the folio is page sized.
For the following case, it will not work and leave the range beyond EOF
uninitialized:
The page size is 4K, and the fs block size is also 4K.
16K 20K 24K
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EOF at 22K
And we have a large folio sized 8K at file offset 16K.
In that case, the old "folio->index == end_index" will not work, thus
the range [22K, 24K) will not be zeroed out.
Fix the following call sites which use the above pattern:
- add_ra_bio_pages()
- extent_writepage()
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Inside functions unlock_delalloc_folio() and lock_delalloc_folios(), we
have the following early exits:
if (index == locked_folio->index && end_index == index)
return;
This allows us to exit early if the range is inside the same locked
folio.
However the current check relies on page sized folios, if we have a large
folio that contains @index but not at @index, then the early exit will
no longer trigger.
Furthermore without the above early check, the existing code can handle it
well, as both __process_folios_contig() and lock_delalloc_folios() will
skip any folio page lock/unlock if it's on the locked folio.
Here we remove the early exits and let the existing code handle the
same index case, to make the code a little simpler.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The function itself is already taking large folios into consideration,
just remove the ASSERT(!folio_test_large()) line.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The subpage handling code has two locations not supporting large folios:
- btrfs_attach_subpage()
Which is doing a metadata specific ASSERT() check.
But for the future large data folios support, that check is too
generic. Since it's metadata specific, only check the ASSERT() for
metadata.
- btrfs_subpage_assert()
Just remove the "ASSERT(folio_order(folio) == 0)" check.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The function is doing an ASSERT() checking the folio order, but all
later functions are handling large folios properly, thus we can safely
remove that ASSERT().
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The only blockage is the ASSERT() rejecting large folios, just remove
it.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The function btrfs_page_mkwrite() has an explicit ASSERT() checking the
folio order.
To make it support large data folios, we need to:
- Remove the ASSERT(folio_order(folio) == 0)
- Use folio_contains() to check if the folio covers the last page
Otherwise the code is already supporting large folios well.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Currently put_file_data() can only accept a page sized folio. However
the function itself is not that complex, it's just copying data from
filemap folio into the send buffer.
Make it support large data folios:
- Change the loop to use file offset instead of page index
- Calculate @pg_offset and @cur_len after getting the folio
- Remove the "WARN_ON(folio_order(folio));" line
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The again label is here to retry to get the folio for the current index.
When triggering that label, there is no advance of the iterator.
So it can be replaced by a simple "continue" and remove the again label.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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This is the trivial pattern for path auto free, initialize at the
beginning and free at the end with simple goto -> return conversions.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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This is the trivial pattern for path auto free, initialize at the
beginning and free at the end with simple goto -> return conversions.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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This is the trivial pattern for path auto free, initialize at the
beginning and free at the end with simple goto -> return conversions.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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This is the trivial pattern for path auto free, initialize at the
beginning and free at the end with simple goto -> return conversions.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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This is the trivial pattern for path auto free, initialize at the
beginning and free at the end with simple goto -> return conversions.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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This is the trivial pattern for path auto free, initialize at the
beginning and free at the end with simple goto -> return conversions.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The most trivial pattern for the auto freeing when the variable is
declared with the macro and the final btrfs_free_path() is removed.
There are almost none goto -> return conversions and there's no other
function cleanup.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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It's pointless to check if the current record's start offset is greater
than the end offset, as before we just tested if it was greater than the
start offset - and if it's not it means it's less than or equal to the
start offset, so it can not be greater than the end offset, as our start
offset is always smaller than the end offset.
So remove that check and also add an assertion to verify the start offset
is smaller then the end offset.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The overflow detection for the start offset of the next record is not
really necessary, we can just stop iterating if the current record ends at
or after out end offset. This removes the need to test if the current
record end offset is (u64)-1 and to check if adding 1 to the current
end offset results in 0.
By testing only if the current record ends at or after the end offset, we
also don't need anymore to test the new start offset at the head of the
while loop.
This makes both the source code and assembly code simpler, more efficient
and shorter (reducing the object text size).
Also remove the pointless initialization to NULL of the state variable, as
we don't use it before the first assignment to it. This may help avoid
some warnings with clang tools such as the one reported/fixed by commit
966de47ff0c9 ("btrfs: remove redundant initialization of variables in
log_new_ancestors").
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The tree_search() function always returns an entry that either contains
the search offset or the first entry in the tree that starts after the
offset. So checking at find_first_extent_bit_state() if the returned
entry ends at or after the search offset is pointless. Remove the check.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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There are several things wrong with the documentation:
1) At the top it's only mentioned that we search for an entry containing
the given offset, but when such entry does not exists we search for
the first entry that starts and ends after that offset;
2) It mentions that @node_ret and @parent_ret aren't changed if the
returned entry contains the given offset - that is true only if the
returned entry starts exactly at @offset, otherwise those arguments
are changed;
3) It mentions that if no entry containing offset is found then we return
the first entry ending before the offset - that is not true, we return
the first entry that starts and ends after that offset;
4) It also mentions that NULL is never returned. This is false as in case
there's no entry containing offset or any entry that starts and ends
after offset, NULL is returned.
So fix the documentation.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Instead of keeping track of the minimum start offset of the next record
and detecting overflow every time we update that offset to be the sum of
current record's end offset plus one, we can simply exit when the current
record ends at or beyond our end offset and forget about updating the
start offset on every iteration and testing for it at the top of the loop.
This makes both the source code and assembly code simpler, more efficient
and shorter (reducing the object text size).
Also remove the pointless initialization to NULL of the state variable, as
we don't use it before the first assignment to it. This may help avoid
some warnings with clang tools such as the one reported/fixed by commit
966de47ff0c9 ("btrfs: remove redundant initialization of variables in
log_new_ancestors").
Reviewed-by: Boris Burkov <boris@bur.io>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Several places are using clear_extent_bit() and passing a NULL value for
the 'cached' argument, which is pointless as they can use instead
clear_extent_bits().
Reviewed-by: Boris Burkov <boris@bur.io>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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