The patch titled
Subject: iomap: update ki_pos a little later in iomap_dio_complete
has been added to the -mm mm-unstable branch. Its filename is
iomap-update-ki_pos-a-little-later-in-iomap_dio_complete.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/iomap-update-ki_pos-a-little-later-in-iomap_dio_complete.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Christoph Hellwig <hch@xxxxxx>
Subject: iomap: update ki_pos a little later in iomap_dio_complete
Date: Fri, 19 May 2023 11:35:09 +0200
Patch series "cleanup the filemap / direct I/O interaction".
This series cleans up some of the generic write helper calling conventions
and the page cache writeback / invalidation for direct I/O. This is a
spinoff from the no-bufferhead kernel project, for which we'll want to use
an iomap based buffered write path in the block layer.
This patch (of 13):
Move the ki_pos update down a bit to prepare for a better common helper
that invalidates pages based of an iocb.
Link: https://lkml.kernel.org/r/20230519093521.133226-1-hch@xxxxxx
Link: https://lkml.kernel.org/r/20230519093521.133226-2-hch@xxxxxx
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
Cc: Anna Schumaker <anna@xxxxxxxxxx>
Cc: Chao Yu <chao@xxxxxxxxxx>
Cc: Christian Brauner <brauner@xxxxxxxxxx>
Cc: Damien Le Moal <dlemoal@xxxxxxxxxx>
Cc: Darrick J. Wong <djwong@xxxxxxxxxx>
Cc: Ilya Dryomov <idryomov@xxxxxxxxx>
Cc: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Miklos Szeredi <miklos@xxxxxxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Cc: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Cc: Xiubo Li <xiubli@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/iomap/direct-io.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
--- a/fs/iomap/direct-io.c~iomap-update-ki_pos-a-little-later-in-iomap_dio_complete
+++ a/fs/iomap/direct-io.c
@@ -94,7 +94,6 @@ ssize_t iomap_dio_complete(struct iomap_
if (offset + ret > dio->i_size &&
!(dio->flags & IOMAP_DIO_WRITE))
ret = dio->i_size - offset;
- iocb->ki_pos += ret;
}
/*
@@ -120,19 +119,21 @@ ssize_t iomap_dio_complete(struct iomap_
}
inode_dio_end(file_inode(iocb->ki_filp));
- /*
- * If this is a DSYNC write, make sure we push it to stable storage now
- * that we've written data.
- */
- if (ret > 0 && (dio->flags & IOMAP_DIO_NEED_SYNC))
- ret = generic_write_sync(iocb, ret);
- if (ret > 0)
- ret += dio->done_before;
+ if (ret > 0) {
+ iocb->ki_pos += ret;
+ /*
+ * If this is a DSYNC write, make sure we push it to stable
+ * storage now that we've written data.
+ */
+ if (dio->flags & IOMAP_DIO_NEED_SYNC)
+ ret = generic_write_sync(iocb, ret);
+ if (ret > 0)
+ ret += dio->done_before;
+ }
trace_iomap_dio_complete(iocb, dio->error, ret);
kfree(dio);
-
return ret;
}
EXPORT_SYMBOL_GPL(iomap_dio_complete);
_
Patches currently in -mm which might be from hch@xxxxxx are
iomap-update-ki_pos-a-little-later-in-iomap_dio_complete.patch
filemap-update-ki_pos-in-generic_perform_write.patch
filemap-assign-current-backing_dev_info-in-generic_perform_write.patch
filemap-add-a-kiocb_write_and_wait-helper.patch
filemap-add-a-kiocb_invalidate_pages-helper.patch
filemap-add-a-kiocb_invalidate_post_write-helper.patch
iomap-update-ki_pos-in-iomap_file_buffered_write.patch
iomap-assign-current-backing_dev_info-in-iomap_file_buffered_write.patch
iomap-use-kiocb_write_and_wait-and-kiocb_invalidate_pages.patch
fs-factor-out-a-direct_write_fallback-helper.patch
fuse-update-ki_pos-in-fuse_perform_write.patch
fuse-drop-redundant-arguments-to-fuse_perform_write.patch
fuse-use-direct_write_fallback.patch
squashfs-dont-include-buffer_headh.patch
