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| author | Tejun Heo <tj@kernel.org> | 2010-07-20 22:09:01 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2010-07-22 22:58:47 +0200 |
| commit | 8af7c12436803291c90295259db23d371a7ad9cc (patch) | |
| tree | 5e75360876ac5783a3e64bd35a1715847d90e9ce /fs/cachefiles | |
| parent | 8b8edefa2fffbff97f9eec8b70e78ae23abad1a0 (diff) | |
| download | lwn-8af7c12436803291c90295259db23d371a7ad9cc.tar.gz lwn-8af7c12436803291c90295259db23d371a7ad9cc.zip | |
fscache: convert operation to use workqueue instead of slow-work
Make fscache operation to use only workqueue instead of combination of
workqueue and slow-work. FSCACHE_OP_SLOW is dropped and
FSCACHE_OP_FAST is renamed to FSCACHE_OP_ASYNC and uses newly added
fscache_op_wq workqueue to execute op->processor().
fscache_operation_init_slow() is dropped and fscache_operation_init()
now takes @processor argument directly.
* Unbound workqueue is used.
* fscache_retrieval_work() is no longer necessary as OP_ASYNC now does
the equivalent thing.
* sysctl fscache.operation_max_active added to control concurrency.
The default value is nr_cpus clamped between 2 and
WQ_UNBOUND_MAX_ACTIVE.
* debugfs support is dropped for now. Tracing API based debug
facility is planned to be added.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/cachefiles')
| -rw-r--r-- | fs/cachefiles/rdwr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c index 0f0d41fbb03f..0e3c0924cc3a 100644 --- a/fs/cachefiles/rdwr.c +++ b/fs/cachefiles/rdwr.c @@ -422,7 +422,7 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op, shift = PAGE_SHIFT - inode->i_sb->s_blocksize_bits; op->op.flags &= FSCACHE_OP_KEEP_FLAGS; - op->op.flags |= FSCACHE_OP_FAST; + op->op.flags |= FSCACHE_OP_ASYNC; op->op.processor = cachefiles_read_copier; pagevec_init(&pagevec, 0); @@ -729,7 +729,7 @@ int cachefiles_read_or_alloc_pages(struct fscache_retrieval *op, pagevec_init(&pagevec, 0); op->op.flags &= FSCACHE_OP_KEEP_FLAGS; - op->op.flags |= FSCACHE_OP_FAST; + op->op.flags |= FSCACHE_OP_ASYNC; op->op.processor = cachefiles_read_copier; INIT_LIST_HEAD(&backpages); |