| Age | Commit message (Collapse) | Author | Files | Lines |
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Since 'snprintf()' returns the number of characters which would
be emitted and output truncation is handled by 'ASSERT()', it
should be safe to use that return value instead of the subsequent
calls to 'strlen()' in 'gen_unique_name()'.
This also reduces the module's text size.
Before:
$ size fs/btrfs/btrfs.ko
text data bss dec hex filename
1897006 161571 16136 2074713 1fa859 fs/btrfs/btrfs.ko
After:
$ size fs/btrfs/btrfs.ko
text data bss dec hex filename
1896848 161571 16136 2074555 1fa7bb fs/btrfs/btrfs.ko
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Reviewed-by: Filipe Manana <fdmanana@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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At btrfs_qgroup_inherit() we allocate a qgroup record even if qgroups are
not enabled, which is unnecessary overhead and can result in subvolume
creation to fail with -ENOMEM, as create_subvol() calls this function.
Improve on this by making btrfs_qgroup_inherit() check if qgroups are
enabled earlier and return if they are not, avoiding the unnecessary
memory allocation and taking some locks.
Reviewed-by: Qu Wenruo <wqu@suse.com>
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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The add_qgroup_rb() function never returns an error pointer anymore since
commit 8d54518b5e52 ("btrfs: qgroup: pre-allocate btrfs_qgroup to reduce
GFP_ATOMIC usage"), so checking for an error pointer result at
btrfs_quota_enable() is pointless.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
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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Instead of a single if statement with multiple conditions, split it into
several if statements testing only one condition at a time and return true
or false immediately after. This makes it more immediate to reason.
The module's text size also slightly decreases, at least with gcc 14.2.0
on x86_64.
Before:
$ size fs/btrfs/btrfs.ko
text data bss dec hex filename
1897138 161583 16136 2074857 1fa8e9 fs/btrfs/btrfs.ko
After:
$ size fs/btrfs/btrfs.ko
text data bss dec hex filename
1896976 161583 16136 2074695 1fa847 fs/btrfs/btrfs.ko
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
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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This is an exported function and therefore it should have a 'btrfs_'
prefix, to make it clear it's btrfs specific, avoid future name collisions
with code outside btrfs, and make its naming consistent with most other
btrfs exported functions.
So add a 'btrfs_' prefix to it and make it return bool instead of int,
since all we need is to return true or false.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
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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The __add_inode_ref() function is quite big and with too much nesting, so
move the code that processes inode extrefs into a helper function, to make
the function easier to read and reduce the level of indentation too.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
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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The __add_inode_ref() function is quite big and with too much nesting, so
move the code that processes inode refs into a helper function, to make
the function easier to read and reduce the level of indentation too.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
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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Almost everywhere we want to use a btrfs inode and therefore we have a
lot of calls to BTRFS_I(), making the code more verbose. Instead use btrfs
inode local variables to avoid so much use of BTRFS_I().
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
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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There's no need to call d_inode(dentry) when calling btrfs_unlink_inode()
since we have already stored that in a local inode variable. So just use
the local variable to make the code less verbose.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
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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Our message helpers accept NULL for the fs_info in the context that does
not provide and print the common header of the message. The use of pr_*
helpers is only for special reasons, like module loading, device
scanning or multi-line output (print-tree).
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Commit 323ac95bce44 ("Btrfs: don't read leaf blocks containing only
checksums during truncate") changed the condition from `level == 0` to
`level == path->lowest_level`, while its original purpose was just to do
some leaf node handling (calling btrfs_item_key_to_cpu()) and skip some
code that doesn't fit leaf nodes.
After changing the condition, the code path:
1. Also handles the non-leaf nodes when path->lowest_level is nonzero,
which is wrong. However btrfs_search_forward() is never called with a
nonzero path->lowest_level, which makes this bug not found before.
2. Makes the later if block with the same condition, which was originally
used to handle non-leaf node (calling btrfs_node_key_to_cpu()) when
lowest_level is not zero, dead code.
Since btrfs_search_forward() is never called for a path with a
lowest_level different from zero, just completely remove the partial
support for a non-zero lowest_level, simplifying a bit the code, and
assert that lowest_level is zero at the start of the function.
Suggested-by: Qu Wenruo <wqu@suse.com>
Fixes: 323ac95bce44 ("Btrfs: don't read leaf blocks containing only checksums during truncate")
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Sun YangKai <sunk67188@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Simplify code pattern of 'folio->index + folio_nr_pages(folio)' by using
the existing helper folio_next_index().
Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The function btrfs_lookup_inode_extref(` no longer requires transaction
handle, insert length, or COW flag, as the only caller now performs a
read-only lookup using trans == NULL, ins_len == 0 and cow == 0.
This function was introduced in the early days where extref feature was
introduced by commit f186373fef00 ("btrfs: extended inode refs").
Then some cleanup was done in commit 33b98f227111 ("btrfs: cleanup:
removed unused 'btrfs_get_inode_ref_index'"), which removed the only
caller passing trans and other COW specific options.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Sun YangKai <sunk67188@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Unify naming of return value to the preferred way.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Unify naming of return value to the preferred way.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Unify naming of return value to the preferred way.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Unify naming of return value to the preferred way.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Unify naming of return value to the preferred way.
Reviewed-by: Daniel Vacek <neelx@suse.com>yy
Signed-off-by: David Sterba <dsterba@suse.com>
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Every time we add free space to the free space tree or we remove free
space from the free space tree, we do a lookup for the block group's free
space info item in the free space tree. This takes time, navigating the
btree and we may block either on IO when reading extent buffers from disk
or on extent buffer lock contention due to concurrency.
Instead of doing this lookup every time, cache the result in the block
structure and use it after the first lookup. This adds two boolean members
to the block group structure but doesn't increase the structure's size.
The following script that runs fs_mark was used to measure the time spent
on run_delayed_tree_ref(), since down that call chain we have calls to
add and remove free space to/from the free space tree (calls to
btrfs_add_to_free_space_tree() and btrfs_remove_from_free_space_tree()):
$ cat test.sh
#!/bin/bash
DEV=/dev/nullb0
MNT=/mnt
FILES=100000
THREADS=$(nproc --all)
echo "performance" | \
tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
umount $DEV &> /dev/null
mkfs.btrfs -f $DEV
mount -o ssd $DEV $MNT
OPTS="-S 0 -L 5 -n $FILES -s 0 -t $THREADS -k"
for ((i = 1; i <= $THREADS; i++)); do
OPTS="$OPTS -d $MNT/d$i"
done
fs_mark $OPTS
umount $MNT
This is a heavy metadata test as it's exercising only file creation, so a
lot of allocations of metadata extents, creating delayed refs for adding
new metadata extents and dropping existing ones due to COW. The results
of the times it took to execute run_delayed_tree_ref(), in nanoseconds,
are the following.
Before this change:
Range: 1868.000 - 6482857.000; Mean: 10231.430; Median: 7005.000; Stddev: 27993.173
Percentiles: 90th: 13342.000; 95th: 23279.000; 99th: 82448.000
1868.000 - 4222.038: 270696 ############
4222.038 - 9541.029: 1201327 #####################################################
9541.029 - 21559.383: 385436 #################
21559.383 - 48715.063: 64942 ###
48715.063 - 110073.800: 31454 #
110073.800 - 248714.944: 8218 |
248714.944 - 561977.042: 1030 |
561977.042 - 1269798.254: 295 |
1269798.254 - 2869132.711: 116 |
2869132.711 - 6482857.000: 28 |
After this change:
Range: 1554.000 - 4557014.000; Mean: 9168.164; Median: 6391.000; Stddev: 21467.060
Percentiles: 90th: 12478.000; 95th: 20964.000; 99th: 72234.000
1554.000 - 3453.820: 219004 ############
3453.820 - 7674.743: 980645 #####################################################
7674.743 - 17052.574: 552486 ##############################
17052.574 - 37887.762: 68558 ####
37887.762 - 84178.322: 31557 ##
84178.322 - 187024.331: 12102 #
187024.331 - 415522.355: 1364 |
415522.355 - 923187.626: 256 |
923187.626 - 2051092.468: 125 |
2051092.468 - 4557014.000: 21 |
Approximate improvement in the first four buckets is about 20%.
Reviewed-by: Boris Burkov <boris@bur.io>
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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When adding and removing free space to the free space tree, we need to
lookup the respective block group's free info item in the free space tree,
check its flags for the BTRFS_FREE_SPACE_USING_BITMAPS bit and then
release the path.
Move these steps into a helper function and use it in both sites.
This will also help avoiding duplicate code in a subsequent change.
Reviewed-by: Boris Burkov <boris@bur.io>
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 dereference the block group to extract fs_info as we
have already stored fs_info in a local variable. So use the local variable
instead.
Reviewed-by: Boris Burkov <boris@bur.io>
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 subtract 1 from path->slots[0] and then decrement the
slot, we can reduce the generated assembly code by decrementing the slot
and then use it.
Module size before:
$ size fs/btrfs/btrfs.ko
text data bss dec hex filename
1846220 162998 16136 2025354 1ee78a fs/btrfs/btrfs.ko
Module size after:
$ size fs/btrfs/btrfs.ko
text data bss dec hex filename
1846204 162998 16136 2025338 1ee77a fs/btrfs/btrfs.ko
Reviewed-by: Boris Burkov <boris@bur.io>
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 argument is used as a boolean, so switch its type from int to bool.
Reviewed-by: Boris Burkov <boris@bur.io>
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 free_space_set_bits() is used both to set a range of bits or to clear
range of bits, depending on the 'bit' argument value. So the name is very
misleading since it's not used only to set bits. Furthermore the 'bit'
argument is an integer when a boolean is all that is needed plus its name
is singular, which gives the idea the function operates on a single bit
and not on a range of bits.
So rename the function to free_space_modify_bits(), rename the 'bit'
argument to 'set_bits' and turn the argument to bool instead of int.
Reviewed-by: Boris Burkov <boris@bur.io>
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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A few of the free space tree exported functions have a 'btrfs_' prefix in
their name, but most don't. Not only is this inconsistent, the preferred
style is to have such a prefix, to avoid potential collisions in the
future with other kernel code and offer a somewhat better readibility by
making it obvious in calls sites that we are calling btrfs specific code.
So add the 'btrfs_' prefix to all free space tree functions that are
missing it.
Reviewed-by: Boris Burkov <boris@bur.io>
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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All we do under the label is to return, so there's no point in having it,
just return directly whenever we get an error.
Reviewed-by: Boris Burkov <boris@bur.io>
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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All we do under the label is to return, so there's no point in having it,
just return directly whenever we get an error.
Reviewed-by: Boris Burkov <boris@bur.io>
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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All we do under the label is to return, so there's no point in having it,
just return directly whenever we get an error.
Reviewed-by: Boris Burkov <boris@bur.io>
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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All we do under the label is to return, so there's no point in having it,
just return directly whenever we get an error.
Reviewed-by: Boris Burkov <boris@bur.io>
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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All we do under the label is to return, so there's no point in having it,
just return directly whenever we get an error.
Reviewed-by: Boris Burkov <boris@bur.io>
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 returns the result of another function that returns a boolean
(extent_buffer_test_bit()), and all the callers need is a boolean an not
an integer. So change its return type from int to bool, and modify the
callers to store results in booleans instead of integers, which also makes
them simpler.
Reviewed-by: Boris Burkov <boris@bur.io>
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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All the callers want is to determine if a bit is set and all of them call
the function and do a double negation (!!) on its result to get a boolean.
So change it to return a boolean and simplify callers.
Reviewed-by: Boris Burkov <boris@bur.io>
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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Just return directly, we don't need the label since all we do under it is
to return.
Reviewed-by: Boris Burkov <boris@bur.io>
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 can just return directly if btrfs_insert_empty_item() fails, there is
no need to release the path before returning, as all callers (or upper
in the call chain) will free the path if they get an error from the call
to add_new_free_space_info(), which is also a common pattern everywhere
in btrfs. Finally there's no need to set 'ret' to 0 if the call to
btrfs_insert_empty_item() didn't fail, since 'ret' is already 0.
Reviewed-by: Boris Burkov <boris@bur.io>
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 dirty_log_pages tree is used for tree logging and marks extents
based on log_transid. The bits could be renamed to resemble the
LOG1/LOG2 naming used for the BTRFS_FS_LOG1_ERR bits.
The DIRTY bit is renamed to LOG1 and NEW to LOG2.
Signed-off-by: David Sterba <dsterba@suse.com>
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Simplify folio_pos() + folio_size() and use the new helper.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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There are several cases of folio_pos + folio_size, add a convenience
helper for that. This is a local helper and not proposed as folio API
because it does not seem to be heavily used elsewhere:
A quick grep (folio_size + folio_end) in fs/ shows
24 btrfs
4 iomap
4 ext4
2 xfs
2 netfs
1 gfs2
1 f2fs
1 bcachefs
1 buffer.c
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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In preparation to use a helper for folio_pos + folio_size, rename the
variables for the locked range so they don't use the 'folio_' prefix. As
the locking ranges take inclusive end of the range (hence the "-1") this
would be confusing as the folio helpers typically use exclusive end of
the range.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The way zero_end is calculated and used does a -1 and +1 that
effectively cancel out, so this can be simplified. This is also
preparatory patch for using a helper for folio_pos + folio_size with the
semantics of exclusive end of the range.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Every caller of __add_block_group_free_space() is checking if the flag
BLOCK_GROUP_FLAG_NEEDS_FREE_SPACE is set before calling it. This is
duplicate code and it's prone to some mistake in case we add more callers
in the future. So move the check for that flag into the start of
__add_block_group_free_space(), and, as a consequence, the path allocation
from add_block_group_free_space() is moved into
__add_block_group_free_space(), to preserve the behaviour of allocating
a path only if the flag BLOCK_GROUP_FLAG_NEEDS_FREE_SPACE is set.
Reviewed-by: Boris Burkov <boris@bur.io>
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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Only one of the callers of __add_block_group_free_space() aborts the
transaction if the call fails, while the others don't do it and it's
either never done up the call chain or much higher in the call chain.
So make sure we abort the transaction at __add_block_group_free_space()
if it fails, which brings a couple benefits:
1) If some call chain never aborts the transaction, we avoid having some
metadata inconsistency because BLOCK_GROUP_FLAG_NEEDS_FREE_SPACE is
cleared when we enter __add_block_group_free_space() and therefore
__add_block_group_free_space() is never called again to add the block
group items to the free space tree, since the function is only called
when that flag is set in a block group;
2) If the call chain already aborts the transaction, then we get a better
trace that points to the exact step from __add_block_group_free_space()
which failed, which is better for analysis.
So abort the transaction at __add_block_group_free_space() if any of its
steps fails.
CC: stable@vger.kernel.org # 6.6+
Reviewed-by: Boris Burkov <boris@bur.io>
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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Unlike qgroup rescan, which always shows whether it cleared the
inconsistent flag, we do not have a proper way to show if qgroup is
marked inconsistent.
This was not a big deal before as there aren't that many locations that
can mark qgroup inconsistent.
But with the introduction of drop_subtree_threshold, qgroup can be
marked inconsistent very frequently, especially when dropping
subvolumes.
Although most user space tools relying on qgroup should do their own
checks and queue a rescan if needed, we have no idea when qgroup is
marked inconsistent, and this would be much harder to debug.
So this patch will add an extra warning (btrfs_warn_rl()) when the
qgroup flag is flipped into inconsistent for the first time.
And add extra reason why qgroup flips inconsistent.
This means we can move the error message immediately before
qgroup_inconsistent_warning() into that function.
For call sites without an obvious reason, or is a shared error handling,
output the function that failed and the error code instead.
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 only one caller of btrfs_printk_ratelimited(), merge it there.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The btrfs_debug() helpers depend on various config options. In case of
"no_printk" we don't need to define a special helper that in the end
does nothing but validates the parameters. As the default build config
is to validate the parameters we can simplify it to let the debug
helpers expand to nothing and remove btrfs_no_printk_in_rcu().
To avoid warnings use fs_info and inline one variable in
extent_from_logical().
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Remove the critical level message helpers as they're not used, the RCU
protection is provided by the plain helpers.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The RCU protection is now done in the plain helpers, we can remove the
"_in_rcu" and "_rl_in_rcu".
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
|
|
The RCU protection is now done in the plain helpers, we can remove the
"_in_rcu" and "_rl_in_rcu".
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
|
|
The RCU protection is now done in the plain helpers, we can remove the
"_in_rcu" and "_rl_in_rcu".
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
|
|
The RCU protection is now done in the plain helpers, we can remove the
"_in_rcu" and "_rl_in_rcu".
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
|
|
We have two versions of message helpers, one that provides RCU
protection around the call in case we need to dereference device name.
As messages are not performance critical we can set up the RCU
protection for all of them and drop the distinction for those where
device name is needed. This will lead to further simplifications.
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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