Hi Matthew,
On 2024/1/15 22:06, Matthew Wilcox wrote:
On Mon, Jan 15, 2024 at 04:33:37PM +0800, Gao Xiang wrote:
From: David Howells <dhowells@xxxxxxxxxx>
Filesystems should use folio->index and folio->mapping, instead of
folio_index(folio), folio_mapping() and folio_file_mapping() since
they know that it's in the pagecache.
Change this automagically with:
perl -p -i -e 's/folio_mapping[(]([^)]*)[)]/\1->mapping/g' fs/erofs/*.c
perl -p -i -e 's/folio_file_mapping[(]([^)]*)[)]/\1->mapping/g' fs/erofs/*.c
perl -p -i -e 's/folio_index[(]([^)]*)[)]/\1->index/g' fs/erofs/*.c
Reported-by: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
Cc: Chao Yu <chao@xxxxxxxxxx>
Cc: Yue Hu <huyue2@xxxxxxxxxxx>
Cc: Jeffle Xu <jefflexu@xxxxxxxxxxxxxxxxx>
Cc: linux-erofs@xxxxxxxxxxxxxxxx
Cc: linux-fsdevel@xxxxxxxxxxxxxxx
Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>
---
Hi folks,
I tend to apply this patch upstream since compressed data fscache
adaption touches this part too. If there is no objection, I'm
going to take this patch separately for -next shortly..
Could you change the subject? It's not that the functions are
"internal", it's that filesystems don't need to use them because they're
guaranteed to not see swap pages. Maybe just s/internal/unnecessary/
Yes, the subject line was inherited from the original one.
Such helpers are useful if the type of a folio is unknown,
let me revise it.
Thanks,
Gao Xiang
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