bcachefs: for_each_btree_key2()

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This introduces two new macros for iterating through the btree, with
transaction restart handling
 - for_each_btree_key2()
 - for_each_btree_key_commit()

Every iteration is now in an implicit transaction, and - as with
lockrestart_do() and commit_do() - returning -EINTR will cause the
transaction to be restarted, at the same key.

This patch converts a bunch of code that was open coding this to these
new macros, saving a substantial amount of code.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>

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This commit is contained in:

Kent Overstreet 2022-07-15 20:51:09 -04:00 • committed by Kent Overstreet

parent 0d06b4eca6

commit a1783320d4

6 changed files with 191 additions and 304 deletions

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14

fs/bcachefs/alloc_background.c

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114

fs/bcachefs/btree_gc.c

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33

fs/bcachefs/btree_iter.h

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138

fs/bcachefs/fsck.c

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29

fs/bcachefs/quota.c

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169

fs/bcachefs/subvolume.c

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