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| author |   Christoph Hellwig <hch@lst.de> | 2025-01-10 08:37:34 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2025-01-10 07:31:50 -0700 |
| commit | 09ccf5549d7809671af34774bb30c8f935d6ed2b (patch) | |
| tree | c3224ee0cca9c1032b735c237027880f1550380b /scripts/generate_rust_analyzer.py | |
| parent | loop: create a lo_can_use_dio helper (diff) | |
| download | wireguard-linux-09ccf5549d7809671af34774bb30c8f935d6ed2b.tar.xz wireguard-linux-09ccf5549d7809671af34774bb30c8f935d6ed2b.zip | |
loop: only write back pagecache when starting to to use direct I/O
There is no point in doing an fdatasync to write out pages when switching
away from direct I/O, as there won't be any. The writeback is only
needed when switching to direct I/O, which would have to invalidate the
pagecache less efficiently from the I/O path.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250110073750.1582447-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions