| commit | 3003bbd0697b659944237f3459489cb596ba196c | [log] [tgz] |
|---|---|---|
| author | David Howells <dhowells@redhat.com> | Thu Feb 06 14:22:29 2020 +0000 |
| committer | David Howells <dhowells@redhat.com> | Fri Apr 23 10:17:28 2021 +0100 |
| tree | 9549110fad53b5950e1a9ab5851268d48d5f8fdd | |
| parent | 5cbf03985c67c7f0ac8c5382cf5d4d0d630f95f3 [diff] [blame] |
afs: Use the netfs_write_begin() helper Make AFS use the new netfs_write_begin() helper to do the pre-reading required before the write. If successful, the helper returns with the required page filled in and locked. It may read more than just one page, expanding the read to meet cache granularity requirements as necessary. Note: A more advanced version of this could be made that does generic_perform_write() for a whole cache granule. This would make it easier to avoid doing the download/read for the data to be overwritten. Signed-off-by: David Howells <dhowells@redhat.com> Tested-By: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org cc: linux-cachefs@redhat.com cc: linux-fsdevel@vger.kernel.org Link: https://lore.kernel.org/r/160588546422.3465195.1546354372589291098.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/161539563244.286939.16537296241609909980.stgit@warthog.procyon.org.uk/ # v4 Link: https://lore.kernel.org/r/161653819291.2770958.406013201547420544.stgit@warthog.procyon.org.uk/ # v5 Link: https://lore.kernel.org/r/161789102743.6155.17396591236631761195.stgit@warthog.procyon.org.uk/ # v6
diff --git a/fs/afs/internal.h b/fs/afs/internal.h index f9a692f..52157a0 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h
@@ -1045,6 +1045,7 @@ extern void afs_dynroot_depopulate(struct super_block *); extern const struct address_space_operations afs_fs_aops; extern const struct inode_operations afs_file_inode_operations; extern const struct file_operations afs_file_operations; +extern const struct netfs_read_request_ops afs_req_ops; extern int afs_cache_wb_key(struct afs_vnode *, struct afs_file *); extern void afs_put_wb_key(struct afs_wb_key *);