bcachefs: Account for stripe parity sectors separately

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Instead of trying to charge EC parity to the data within the stripe
(which is subject to rounding errors), let's charge it to the stripe
itself. It should also make -ENOSPC issues easier to deal with if we
charge for parity blocks up front, and means we can also make more fine
grained accounting available to the user.

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

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This commit is contained in:

Kent Overstreet 2020-07-09 18:31:51 -04:00 • committed by Kent Overstreet

parent 39283c712e

commit af4d05c46b

5 changed files with 142 additions and 86 deletions

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3

fs/bcachefs/bcachefs_format.h

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172

fs/bcachefs/buckets.c

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31

fs/bcachefs/ec.c

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2

fs/bcachefs/ec.h

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20

fs/bcachefs/replicas.c

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