Qu Wenruo a514d63882 btrfs: qgroup: Commit transaction in advance to reduce early EDQUOT ...

Unlike previous method that tries to commit transaction inside
qgroup_reserve(), this time we will try to commit transaction using
fs_info->transaction_kthread to avoid nested transaction and no need to
worry about locking context.

Since it's an asynchronous function call and we won't wait for
transaction commit, unlike previous method, we must call it before we
hit the qgroup limit.

So this patch will use the ratio and size of qgroup meta_pertrans
reservation as indicator to check if we should trigger a transaction
commit.  (meta_prealloc won't be cleaned in transaction committ, it's
useless anyway)

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

2018-04-18 16:46:47 +02:00

..

tests

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acl.c

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async-thread.c

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async-thread.h

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backref.c

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backref.h

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btrfs_inode.h

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check-integrity.c

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check-integrity.h

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compression.c

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compression.h

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ctree.c

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ctree.h

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dedupe.h

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delayed-inode.c

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delayed-inode.h

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delayed-ref.c

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delayed-ref.h

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dev-replace.c

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dev-replace.h

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dir-item.c

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disk-io.c

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disk-io.h

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export.c

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export.h

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extent_io.c

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extent_io.h

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extent_map.c

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extent_map.h

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extent-tree.c

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file-item.c

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file.c

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free-space-cache.c

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free-space-cache.h

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free-space-tree.c

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free-space-tree.h

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inode-item.c

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inode-map.c

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inode-map.h

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inode.c

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ioctl.c

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Kconfig

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locking.c

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locking.h

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lzo.c

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Makefile

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math.h

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ordered-data.c

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ordered-data.h

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orphan.c

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print-tree.c

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print-tree.h

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props.c

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props.h

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qgroup.c

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qgroup.h

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raid56.c

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raid56.h

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rcu-string.h

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reada.c

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ref-verify.c

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ref-verify.h

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relocation.c

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root-tree.c

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scrub.c

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send.c

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send.h

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struct-funcs.c

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super.c

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sysfs.c

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sysfs.h

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transaction.c

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transaction.h

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tree-checker.c

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tree-checker.h

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tree-defrag.c

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tree-log.c

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tree-log.h

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ulist.c

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ulist.h

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uuid-tree.c

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volumes.c

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volumes.h

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zlib.c

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zstd.c

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