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| author | David Howells <dhowells@redhat.com> | 2022-02-16 02:15:57 +0300 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2023-12-28 12:45:24 +0300 |
| commit | 102a7e2c598c22bd2621fa97eb1c93c89d469a12 (patch) | |
| tree | 73d4ffcd3b7b96fbc5435afc1cee21c83bab9173 /include/linux/netfs.h | |
| parent | 938e13a73b244278a3777f38fa915bd239b2efd2 (diff) | |
| download | linux-102a7e2c598c22bd2621fa97eb1c93c89d469a12.tar.xz | |
netfs: Allow buffered shared-writeable mmap through netfs_page_mkwrite()
Provide an entry point to delegate a filesystem's ->page_mkwrite() to.
This checks for conflicting writes, then attached any netfs-specific group
marking (e.g. ceph snap) to the page to be considered dirty.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
Diffstat (limited to 'include/linux/netfs.h')
| -rw-r--r-- | include/linux/netfs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/netfs.h b/include/linux/netfs.h index 0948ecf69aa5..d7f324c7c22a 100644 --- a/include/linux/netfs.h +++ b/include/linux/netfs.h @@ -400,6 +400,10 @@ void netfs_clear_inode_writeback(struct inode *inode, const void *aux); void netfs_invalidate_folio(struct folio *folio, size_t offset, size_t length); bool netfs_release_folio(struct folio *folio, gfp_t gfp); +/* VMA operations API. */ +vm_fault_t netfs_page_mkwrite(struct vm_fault *vmf, struct netfs_group *netfs_group); + +/* (Sub)request management API. */ void netfs_subreq_terminated(struct netfs_io_subrequest *, ssize_t, bool); void netfs_get_subrequest(struct netfs_io_subrequest *subreq, enum netfs_sreq_ref_trace what); |