diff options
author | Chuck Lever <cel@netapp.com> | 2006-03-20 13:44:31 -0500 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-20 13:44:31 -0500 |
commit | 93619e5989173614bef0013b0bb8a3fe3dbd5a95 (patch) | |
tree | 2172226a57bae4db4943d271e5250fd0606a74d1 | |
parent | bc0fb201b34b12e2d16e8cbd5bb078c1db936304 (diff) | |
download | blackbird-op-linux-93619e5989173614bef0013b0bb8a3fe3dbd5a95.tar.gz blackbird-op-linux-93619e5989173614bef0013b0bb8a3fe3dbd5a95.zip |
NFS: create common routine for allocating nfs_direct_req
Factor out a small common piece of the path that allocate nfs_direct_req
structures.
Test plan:
Compile kernel with CONFIG_NFS and CONFIG_NFS_DIRECTIO enabled.
Signed-off-by: Chuck Lever <cel@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
-rw-r--r-- | fs/nfs/direct.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 2593f47eaff0..489f736d0f5d 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -152,6 +152,24 @@ static void nfs_free_user_pages(struct page **pages, int npages, int do_dirty) kfree(pages); } +static inline struct nfs_direct_req *nfs_direct_req_alloc(void) +{ + struct nfs_direct_req *dreq; + + dreq = kmem_cache_alloc(nfs_direct_cachep, SLAB_KERNEL); + if (!dreq) + return NULL; + + kref_init(&dreq->kref); + init_waitqueue_head(&dreq->wait); + INIT_LIST_HEAD(&dreq->list); + dreq->iocb = NULL; + atomic_set(&dreq->count, 0); + atomic_set(&dreq->error, 0); + + return dreq; +} + static void nfs_direct_req_release(struct kref *kref) { struct nfs_direct_req *dreq = container_of(kref, struct nfs_direct_req, kref); @@ -194,17 +212,10 @@ static struct nfs_direct_req *nfs_direct_read_alloc(size_t nbytes, size_t rsize) unsigned int reads = 0; unsigned int rpages = (rsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - dreq = kmem_cache_alloc(nfs_direct_cachep, SLAB_KERNEL); + dreq = nfs_direct_req_alloc(); if (!dreq) return NULL; - kref_init(&dreq->kref); - init_waitqueue_head(&dreq->wait); - INIT_LIST_HEAD(&dreq->list); - dreq->iocb = NULL; - atomic_set(&dreq->count, 0); - atomic_set(&dreq->error, 0); - list = &dreq->list; for(;;) { struct nfs_read_data *data = nfs_readdata_alloc(rpages); |