| Message ID | 20240328163424.2781320-16-dhowells@redhat.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | netfs, afs, 9p, cifs: Rework netfs to use ->writepages() to copy to cache | expand |
On Thu, Mar 28, 2024 at 04:34:07PM +0000, David Howells wrote:
> Export writeback_iter() so that it can be used by netfslib as a module.
EXPORT_SYMBOL_GPL, please.
Christoph Hellwig <hch@lst.de> wrote: > On Thu, Mar 28, 2024 at 04:34:07PM +0000, David Howells wrote: > > Export writeback_iter() so that it can be used by netfslib as a module. > > EXPORT_SYMBOL_GPL, please. That depends. You put a comment on write_cache_pages() saying that people should use writeback_iter() instead. w_c_p() is not marked GPL. Is it your intention to get rid of it? David
On Wed, Apr 03, 2024 at 11:10:47AM +0100, David Howells wrote: > That depends. You put a comment on write_cache_pages() saying that people > should use writeback_iter() instead. w_c_p() is not marked GPL. Is it your > intention to get rid of it? Yes. If you think you're not a derivate work of Linux you have no business using either one.
Christoph Hellwig <hch@lst.de> wrote: > On Wed, Apr 03, 2024 at 11:10:47AM +0100, David Howells wrote: > > That depends. You put a comment on write_cache_pages() saying that people > > should use writeback_iter() instead. w_c_p() is not marked GPL. Is it your > > intention to get rid of it? > > Yes. If you think you're not a derivate work of Linux you have no > business using either one. So why are we bothering with EXPORT_SYMBOL at all? Why don't you just send a patch replace all of them with EXPORT_SYMBOL_GPL()? David
On Wed, Apr 03, 2024 at 11:55:00AM +0100, David Howells wrote: > So why are we bothering with EXPORT_SYMBOL at all? Why don't you just send a > patch replace all of them with EXPORT_SYMBOL_GPL()? No my business. But if you want to side track this let me just put this in here: NAK to the non-GPL EXPORT of writeback_iter().
Christoph Hellwig <hch@lst.de> wrote: > > So why are we bothering with EXPORT_SYMBOL at all? Why don't you just > > send a patch replace all of them with EXPORT_SYMBOL_GPL()? > > No my business. Clearly it is as you're gradually replacing APIs with stuff that is GPL'd. > But if you want to side track this let me just put this in here: > > NAK to the non-GPL EXPORT of writeback_iter(). Very well, I'll switch that export to GPL. Christian, if you can amend that patch in your tree? David
On Wed, Apr 03, 2024 at 01:58:15PM +0100, David Howells wrote: > Very well, I'll switch that export to GPL. Christian, if you can amend that > patch in your tree? Thanks!
On Wed, Apr 03, 2024 at 01:58:15PM +0100, David Howells wrote: > Christoph Hellwig <hch@lst.de> wrote: > > > > So why are we bothering with EXPORT_SYMBOL at all? Why don't you just > > > send a patch replace all of them with EXPORT_SYMBOL_GPL()? > > > > No my business. > > Clearly it is as you're gradually replacing APIs with stuff that is GPL'd. > > > But if you want to side track this let me just put this in here: > > > > NAK to the non-GPL EXPORT of writeback_iter(). > > Very well, I'll switch that export to GPL. Christian, if you can amend that > patch in your tree? Sorted yesterday night!
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 3e19b87049db..9df160a1cf9e 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2546,6 +2546,7 @@ struct folio *writeback_iter(struct address_space *mapping, folio_batch_release(&wbc->fbatch); return NULL; } +EXPORT_SYMBOL(writeback_iter); /** * write_cache_pages - walk the list of dirty pages of the given address space and write all of them.
Export writeback_iter() so that it can be used by netfslib as a module. Signed-off-by: David Howells <dhowells@redhat.com> cc: Matthew Wilcox (Oracle) <willy@infradead.org> cc: Christoph Hellwig <hch@lst.de> cc: linux-mm@kvack.org --- mm/page-writeback.c | 1 + 1 file changed, 1 insertion(+)