bcachefs: Don't read existing stripes synchronously in write path

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Previously, in the stripe creation path, when reusing an existing stripe
we'd read the existing stripe synchronously - ouch.

Now, we allocate two stripe bufs if we're using an existing stripe, so
that we can do the read asynchronously - and, we read the full stripe so
that we can run recovery, if necessary.

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 2020-12-14 19:41:03 -05:00 • committed by Kent Overstreet

parent 35a067b42d

commit 81d8599e19

3 changed files with 117 additions and 71 deletions

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2

fs/bcachefs/bcachefs_format.h

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179

fs/bcachefs/ec.c

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7

fs/bcachefs/ec.h

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