diff options
| author | Maxime Ripard <mripard@kernel.org> | 2024-06-14 09:55:46 +0200 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2024-06-14 09:55:46 +0200 |
| commit | 14731a640e5513bd514adcf35e96c84ad42f540d (patch) | |
| tree | ab909e6f1506c1d2cff57fbb86a1d6f295b1b413 /drivers/md/bcache/request.c | |
| parent | 41f590e31c6c8b8a0a490b7c1ad2e57c20ec3d9b (diff) | |
| parent | f1909e859753c9bda87c6d2b82a7f832ef80aa2d (diff) | |
Merge drm/drm-fixes into drm-misc-fixes
Roll -rc3 and current drm/fixes in.
This will also unstuck our for-next branch.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'drivers/md/bcache/request.c')
| -rw-r--r-- | drivers/md/bcache/request.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c index 83d112bd2b1c..af345dc6fde1 100644 --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -369,10 +369,24 @@ static bool check_should_bypass(struct cached_dev *dc, struct bio *bio) struct io *i; if (test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags) || - c->gc_stats.in_use > CUTOFF_CACHE_ADD || (bio_op(bio) == REQ_OP_DISCARD)) goto skip; + if (c->gc_stats.in_use > CUTOFF_CACHE_ADD) { + /* + * If cached buckets are all clean now, 'true' will be + * returned and all requests will bypass the cache device. + * Then c->sectors_to_gc has no chance to be negative, and + * gc thread won't wake up and caching won't work forever. + * Here call force_wake_up_gc() to avoid such aftermath. + */ + if (BDEV_STATE(&dc->sb) == BDEV_STATE_CLEAN && + c->gc_mark_valid) + force_wake_up_gc(c); + + goto skip; + } + if (mode == CACHE_MODE_NONE || (mode == CACHE_MODE_WRITEAROUND && op_is_write(bio_op(bio)))) |