diff options
| author | David Howells <dhowells@redhat.com> | 2022-02-21 11:38:17 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2023-12-28 09:45:24 +0000 |
| commit | 153a9961b551101cd38e94e26cd92fbfd198b19b (patch) | |
| tree | 4d45c248dbdaf8ded00848164de353f239f8bac9 /mm/filemap.c | |
| parent | 016dc8516aec8719641e7aaaacd78d344759178e (diff) | |
netfs: Implement unbuffered/DIO write support
Implement support for unbuffered writes and direct I/O writes. If the
write is misaligned with respect to the fscrypt block size, then RMW cycles
are performed if necessary. DIO writes are a special case of unbuffered
writes with extra restriction imposed, such as block size alignment
requirements.
Also provide a field that can tell the code to add some extra space onto
the bounce buffer for use by the filesystem in the case of a
content-encrypted file.
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 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 1c5271ed0cc0..73626eb323f3 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2706,6 +2706,7 @@ int kiocb_invalidate_pages(struct kiocb *iocb, size_t count) return invalidate_inode_pages2_range(mapping, pos >> PAGE_SHIFT, end >> PAGE_SHIFT); } +EXPORT_SYMBOL_GPL(kiocb_invalidate_pages); /** * generic_file_read_iter - generic filesystem read routine |