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| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2020-03-18 22:22:47 +0100 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2020-03-26 15:52:04 +0100 |
| commit | d7242c4641fba521a1ea9dbccb11a40cf38cd912 (patch) | |
| tree | 836c15785364b60705e6999b6a4176c13b94a768 /fs/nfs/pnfs_nfs.c | |
| parent | NFS/pNFS: Refactor pnfs_generic_commit_pagelist() (diff) | |
| download | linux-d7242c4641fba521a1ea9dbccb11a40cf38cd912.tar.xz linux-d7242c4641fba521a1ea9dbccb11a40cf38cd912.zip | |
pNFS: Add a helper to allocate the array of buckets
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/pnfs_nfs.c')
| -rw-r--r-- | fs/nfs/pnfs_nfs.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c index 3d0942541618..c8518ce3a4ef 100644 --- a/fs/nfs/pnfs_nfs.c +++ b/fs/nfs/pnfs_nfs.c @@ -87,6 +87,37 @@ out: } EXPORT_SYMBOL_GPL(pnfs_generic_clear_request_commit); +struct pnfs_commit_array * +pnfs_alloc_commit_array(size_t n, gfp_t gfp_flags) +{ + struct pnfs_commit_array *p; + struct pnfs_commit_bucket *b; + + p = kmalloc(struct_size(p, buckets, n), gfp_flags); + if (!p) + return NULL; + p->nbuckets = n; + INIT_LIST_HEAD(&p->cinfo_list); + INIT_LIST_HEAD(&p->lseg_list); + p->lseg = NULL; + for (b = &p->buckets[0]; n != 0; b++, n--) { + INIT_LIST_HEAD(&b->written); + INIT_LIST_HEAD(&b->committing); + b->wlseg = NULL; + b->clseg = NULL; + b->direct_verf.committed = NFS_INVALID_STABLE_HOW; + } + return p; +} +EXPORT_SYMBOL_GPL(pnfs_alloc_commit_array); + +void +pnfs_free_commit_array(struct pnfs_commit_array *p) +{ + kfree_rcu(p, rcu); +} +EXPORT_SYMBOL_GPL(pnfs_free_commit_array); + static int pnfs_generic_scan_ds_commit_list(struct pnfs_commit_bucket *bucket, struct nfs_commit_info *cinfo, |