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iomap: convert iomap_writepages to writeack_iter

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This removes one indirect function call per folio, and adds type safety
by not casting through a void pointer.

Based on a patch by Matthew Wilcox.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240412061614.1511629-1-hch@lst.de
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig 2024-04-12 08:16:14 +02:00 committed by Christian Brauner
parent 4cece76496
commit 0fac04e4e0
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 5 additions and 9 deletions
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14
fs/iomap/buffered-io.c
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@ -1958,18 +1958,13 @@ static int iomap_writepage_map(struct iomap_writepage_ctx *wpc,
return error;
}
static int iomap_do_writepage(struct folio *folio,
struct writeback_control *wbc, void *data)
{
return iomap_writepage_map(data, wbc, folio);
}
int
iomap_writepages(struct address_space *mapping, struct writeback_control *wbc,
struct iomap_writepage_ctx *wpc,
const struct iomap_writeback_ops *ops)
{
int ret;
struct folio *folio = NULL;
int error;
/*
* Writeback from reclaim context should never happen except in the case
@ -1980,8 +1975,9 @@ iomap_writepages(struct address_space *mapping, struct writeback_control *wbc,
return -EIO;
wpc->ops = ops;
ret = write_cache_pages(mapping, wbc, iomap_do_writepage, wpc);
return iomap_submit_ioend(wpc, ret);
while ((folio = writeback_iter(mapping, wbc, folio, &error)))
error = iomap_writepage_map(wpc, wbc, folio);
return iomap_submit_ioend(wpc, error);
}
EXPORT_SYMBOL_GPL(iomap_writepages);