bcachefs: BCH_WRITE_SYNC

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This adds a new flag for the write path, BCH_WRITE_SYNC, and switches
the O_DIRECT write path to use it when we're not running asynchronously.

It runs the btree update after the write in the original thread's
context instead of a kworker, cutting context switches in half.

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

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This commit is contained in:

Kent Overstreet 2022-10-29 15:54:17 -04:00

parent a101957649

commit 1df3e19996

3 changed files with 55 additions and 30 deletions

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2

fs/bcachefs/fs-io.c

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81

fs/bcachefs/io.c

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2

fs/bcachefs/io.h

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