bcachefs: Add block plugging to read paths

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This will help with some of the btree_trans srcu lock hold time warnings
that are still turning up; submit_bio() can block for awhile if the
device is sufficiently congested.

It's not a perfect solution since blk_plug bios are submitted when
scheduling; we might want a way to disable the "submit on context
switch" behaviour, or switch to our own plugging in the future.

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

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Kent Overstreet 2024-10-14 21:35:44 -04:00

parent be5a7be106

commit 27de0ee39f

2 changed files with 23 additions and 1 deletions

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19

fs/bcachefs/fs-io-buffered.c

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5

fs/bcachefs/fs-io-direct.c

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