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Removing the delay of cache mode change from writeback to others #101

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Removing the delay of cache mode change from writeback to others #101

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24 changes: 0 additions & 24 deletions Driver/enhanceio/eio_ttc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1089,30 +1089,6 @@ int eio_cache_edit(char *cache_name, u_int32_t mode, u_int32_t policy)
restart_async_task = 1;
}

/* Wait for nr_dirty to drop to zero */
if (dmc->mode == CACHE_MODE_WB && mode != CACHE_MODE_WB) {
if (CACHE_FAILED_IS_SET(dmc)) {
pr_err
("cache_edit: Can not proceed with edit for Failed cache \"%s\".",
dmc->cache_name);
error = -EINVAL;
goto out;
}

error = eio_finish_nrdirty(dmc);
/* This error can mostly occur due to Device removal */
if (unlikely(error)) {
pr_err
("cache_edit: nr_dirty FAILED to finish for cache \"%s\".",
dmc->cache_name);
goto out;
}
EIO_ASSERT((dmc->sysctl_active.do_clean & EIO_CLEAN_KEEP) &&
!(dmc->sysctl_active.do_clean & EIO_CLEAN_START));
EIO_ASSERT(dmc->sysctl_active.fast_remove ||
(atomic64_read(&dmc->nr_dirty) == 0));
}

index = EIO_HASH_BDEV(dmc->disk_dev->bdev->bd_contains->bd_dev);
down_write(&eio_ttc_lock[index]);

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