diff options
| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2018-09-25 18:34:43 +0200 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2018-09-30 21:35:17 +0200 |
| commit | 1c6c4b740df12f2162ae5c3fac337137e2776236 (patch) | |
| tree | b740c2831b45eeec44849faa86e8d839671846ee /fs/nfs/pagelist.c | |
| parent | NFSv4: Save a few bytes in the nfs_pgio_args/res (diff) | |
| download | linux-1c6c4b740df12f2162ae5c3fac337137e2776236.tar.xz linux-1c6c4b740df12f2162ae5c3fac337137e2776236.zip | |
NFS: Remove private spinlock in struct nfs_pgio_header
Now that each struct nfs_pgio_header corresponds to one RPC call, we
only have one writer to the struct nfs_pgio_header.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/pagelist.c')
| -rw-r--r-- | fs/nfs/pagelist.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index bb5476a6d264..f97c455f5734 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -63,14 +63,14 @@ EXPORT_SYMBOL_GPL(nfs_pgheader_init); void nfs_set_pgio_error(struct nfs_pgio_header *hdr, int error, loff_t pos) { - spin_lock(&hdr->lock); - if (!test_and_set_bit(NFS_IOHDR_ERROR, &hdr->flags) - || pos < hdr->io_start + hdr->good_bytes) { + unsigned int new = pos - hdr->io_start; + + if (hdr->good_bytes > new) { + hdr->good_bytes = new; clear_bit(NFS_IOHDR_EOF, &hdr->flags); - hdr->good_bytes = pos - hdr->io_start; - hdr->error = error; + if (!test_and_set_bit(NFS_IOHDR_ERROR, &hdr->flags)) + hdr->error = error; } - spin_unlock(&hdr->lock); } static inline struct nfs_page * @@ -494,7 +494,6 @@ struct nfs_pgio_header *nfs_pgio_header_alloc(const struct nfs_rw_ops *ops) if (hdr) { INIT_LIST_HEAD(&hdr->pages); - spin_lock_init(&hdr->lock); hdr->rw_ops = ops; } return hdr; |