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authorNeilBrown2022-05-09 18:20:48 -0700
committerakpm2022-05-09 18:20:48 -0700
commiteb79f3af9395fbe448e91b0940a6c395b7d06be4 (patch)
treedacc763dbfc9f748ee7ce3f1588089800705beb1 /fs/nfs/file.c
parente1209d3a7a67c281260ba9989621060ba7328b8c (diff)
nfs: rename nfs_direct_IO and use as ->swap_rw
The nfs_direct_IO() exists to support SWAP IO, but hasn't worked for a while. We now need a ->swap_rw function which behaves slightly differently, returning zero for success rather than a byte count. So modify nfs_direct_IO accordingly, rename it, and use it as the ->swap_rw function. Link: https://lkml.kernel.org/r/165119301493.15698.7491285551903597618.stgit@noble.brown Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> (on Renesas RSK+RZA1 with 32 MiB of SDRAM) Cc: David Howells <dhowells@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/nfs/file.c')
-rw-r--r--fs/nfs/file.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 55bc8c8ca71a..0e7686a5d0de 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -488,10 +488,6 @@ static int nfs_swap_activate(struct swap_info_struct *sis, struct file *file,
struct rpc_clnt *clnt = NFS_CLIENT(inode);
struct nfs_client *cl = NFS_SERVER(inode)->nfs_client;
- if (!file->f_mapping->a_ops->swap_rw)
- /* Cannot support swap */
- return -EINVAL;
-
spin_lock(&inode->i_lock);
blocks = inode->i_blocks;
isize = inode->i_size;
@@ -549,6 +545,7 @@ const struct address_space_operations nfs_file_aops = {
.error_remove_page = generic_error_remove_page,
.swap_activate = nfs_swap_activate,
.swap_deactivate = nfs_swap_deactivate,
+ .swap_rw = nfs_swap_rw,
};
/*