netfs, 9p: Implement helpers for new write code

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Implement the helpers for the new write code in 9p.  There's now an
optional ->prepare_write() that allows the filesystem to set the parameters
for the next write, such as maximum size and maximum segment count, and an
->issue_write() that is called to initiate an (asynchronous) write
operation.

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: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org

...

This commit is contained in:

David Howells 2024-03-18 20:29:53 +00:00

parent ed22e1dbf8

commit 5fb70e7275

4 changed files with 100 additions and 0 deletions

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48

fs/9p/vfs_addr.c

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2

include/net/9p/client.h

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1

net/9p/Kconfig

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49

net/9p/client.c

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