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author | Fred Isaman <iisaman@netapp.com> | 2012-03-08 17:29:35 -0500 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-03-10 17:14:10 -0500 |
commit | d6d6dc7cdfda7c8f49a89a7b7261846f319da6d1 (patch) | |
tree | fd26cf912b676f2752c16ccce1f410872a2a485c /fs/nfs/pagelist.c | |
parent | 9994b62b5621f88828d442fcd03fe3ce4c43344b (diff) | |
download | linux-3.10-d6d6dc7cdfda7c8f49a89a7b7261846f319da6d1.tar.gz linux-3.10-d6d6dc7cdfda7c8f49a89a7b7261846f319da6d1.tar.bz2 linux-3.10-d6d6dc7cdfda7c8f49a89a7b7261846f319da6d1.zip |
NFS: remove nfs_inode radix tree
The radix tree is only being used to compile lists of reqs needing commit.
It is simpler to just put the reqs directly into a list.
Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/pagelist.c')
-rw-r--r-- | fs/nfs/pagelist.c | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index fc5b54b84f8..d21fceaa9f6 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -396,67 +396,6 @@ void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *desc, pgoff_t index) } } -#define NFS_SCAN_MAXENTRIES 16 -/** - * nfs_scan_list - Scan a list for matching requests - * @nfsi: NFS inode - * @dst: Destination list - * @idx_start: lower bound of page->index to scan - * @npages: idx_start + npages sets the upper bound to scan. - * @tag: tag to scan for - * - * Moves elements from one of the inode request lists. - * If the number of requests is set to 0, the entire address_space - * starting at index idx_start, is scanned. - * The requests are *not* checked to ensure that they form a contiguous set. - * You must be holding the inode's i_lock when calling this function - */ -int nfs_scan_list(struct nfs_inode *nfsi, - struct list_head *dst, pgoff_t idx_start, - unsigned int npages, int tag) -{ - struct nfs_page *pgvec[NFS_SCAN_MAXENTRIES]; - struct nfs_page *req; - pgoff_t idx_end; - int found, i; - int res; - struct list_head *list; - - res = 0; - if (npages == 0) - idx_end = ~0; - else - idx_end = idx_start + npages - 1; - - for (;;) { - found = radix_tree_gang_lookup_tag(&nfsi->nfs_page_tree, - (void **)&pgvec[0], idx_start, - NFS_SCAN_MAXENTRIES, tag); - if (found <= 0) - break; - for (i = 0; i < found; i++) { - req = pgvec[i]; - if (req->wb_index > idx_end) - goto out; - idx_start = req->wb_index + 1; - if (nfs_lock_request_dontget(req)) { - kref_get(&req->wb_kref); - radix_tree_tag_clear(&nfsi->nfs_page_tree, - req->wb_index, tag); - list = pnfs_choose_commit_list(req, dst); - nfs_list_add_request(req, list); - res++; - if (res == INT_MAX) - goto out; - } - } - /* for latency reduction */ - cond_resched_lock(&nfsi->vfs_inode.i_lock); - } -out: - return res; -} - int __init nfs_init_nfspagecache(void) { nfs_page_cachep = kmem_cache_create("nfs_page", |