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NFS: Convert buffered writes to use folios

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Mostly mechanical conversion of struct page and functions into struct
folio equivalents.
The lack of support for folios in write_cache_pages(), means we still
only support order 0 folio allocations. However the rest of the
writeback code should now be ready for order n > 0.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust
2023-01-19 16:33:43 -05:00
committed by Anna Schumaker
parent 5241060e8b
commit 0c493b5cf1
6 changed files with 210 additions and 200 deletions
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5
include/linux/nfs_fs.h
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@@ -569,8 +569,9 @@ extern void nfs_complete_unlink(struct dentry *dentry, struct inode *);
extern int nfs_congestion_kb;
extern int nfs_writepage(struct page *page, struct writeback_control *wbc);
extern int nfs_writepages(struct address_space *, struct writeback_control *);
extern int nfs_flush_incompatible(struct file *file, struct page *page);
extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int);
extern int nfs_flush_incompatible(struct file *file, struct folio *folio);
extern int nfs_update_folio(struct file *file, struct folio *folio,
unsigned int offset, unsigned int count);
/*
* Try to write back everything synchronously (but check the