diff options
| author | David Howells <dhowells@redhat.com> | 2023-12-06 13:48:56 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2023-12-28 10:45:28 +0100 |
| commit | 80105ed2fd2715fb09a8fdb0655a8bdc86c120db (patch) | |
| tree | 530a84a43651d519fd39ab8c29cb06de69eeb0e2 /fs/9p/vfs_inode_dotl.c | |
| parent | afs: Use the netfs write helpers (diff) | |
| download | linux-80105ed2fd2715fb09a8fdb0655a8bdc86c120db.tar.xz linux-80105ed2fd2715fb09a8fdb0655a8bdc86c120db.zip | |
9p: Use netfslib read/write_iter
Use netfslib's read and write iteration helpers, allowing netfslib to take
over the management of the page cache for 9p files and to manage local disk
caching. In particular, this eliminates write_begin, write_end, writepage
and all mentions of struct page and struct folio from 9p.
Note that netfslib now offers the possibility of write-through caching if
that is desirable for 9p: just set the NETFS_ICTX_WRITETHROUGH flag in
v9inode->netfs.flags in v9fs_set_netfs_context().
Note also this is untested as I can't get ganesha.nfsd to correctly parse
the config to turn on 9p support.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: Eric Van Hensbergen <ericvh@kernel.org>
cc: Latchesar Ionkov <lucho@ionkov.net>
cc: Dominique Martinet <asmadeus@codewreck.org>
cc: Christian Schoenebeck <linux_oss@crudebyte.com>
cc: v9fs@lists.linux.dev
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
Diffstat (limited to 'fs/9p/vfs_inode_dotl.c')
| -rw-r--r-- | fs/9p/vfs_inode_dotl.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c index c7319af2f471..e25fbc988f09 100644 --- a/fs/9p/vfs_inode_dotl.c +++ b/fs/9p/vfs_inode_dotl.c @@ -598,7 +598,7 @@ int v9fs_vfs_setattr_dotl(struct mnt_idmap *idmap, if ((iattr->ia_valid & ATTR_SIZE) && iattr->ia_size != i_size_read(inode)) { truncate_setsize(inode, iattr->ia_size); - truncate_pagecache(inode, iattr->ia_size); + netfs_resize_file(netfs_inode(inode), iattr->ia_size, true); #ifdef CONFIG_9P_FSCACHE if (v9ses->cache & CACHE_FSCACHE) @@ -655,6 +655,7 @@ v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode, mode |= inode->i_mode & ~S_IALLUGO; inode->i_mode = mode; + v9inode->netfs.remote_i_size = stat->st_size; if (!(flags & V9FS_STAT2INODE_KEEP_ISIZE)) v9fs_i_size_write(inode, stat->st_size); inode->i_blocks = stat->st_blocks; @@ -683,8 +684,10 @@ v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode, inode->i_mode = mode; } if (!(flags & V9FS_STAT2INODE_KEEP_ISIZE) && - stat->st_result_mask & P9_STATS_SIZE) + stat->st_result_mask & P9_STATS_SIZE) { + v9inode->netfs.remote_i_size = stat->st_size; v9fs_i_size_write(inode, stat->st_size); + } if (stat->st_result_mask & P9_STATS_BLOCKS) inode->i_blocks = stat->st_blocks; } |