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iomap: switch iomap_zero_range to use iomap_iter

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Switch iomap_zero_range to use iomap_iter.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Christoph Hellwig 2021-08-10 18:33:09 -07:00 committed by Darrick J. Wong
parent 8fc274d1f4
commit 2aa3048e03
1 changed files with 18 additions and 18 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

36
fs/iomap/buffered-io.c
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@ -896,11 +896,12 @@ static s64 iomap_zero(struct inode *inode, loff_t pos, u64 length,
return iomap_write_end(inode, pos, bytes, bytes, page, iomap, srcmap); return iomap_write_end(inode, pos, bytes, bytes, page, iomap, srcmap);
} }
static loff_t iomap_zero_range_actor(struct inode *inode, loff_t pos, static loff_t iomap_zero_iter(struct iomap_iter *iter, bool *did_zero)
loff_t length, void *data, struct iomap *iomap,
struct iomap *srcmap)
{ {
bool *did_zero = data; struct iomap *iomap = &iter->iomap;
struct iomap *srcmap = iomap_iter_srcmap(iter);
loff_t pos = iter->pos;
loff_t length = iomap_length(iter);
loff_t written = 0; loff_t written = 0;
/* already zeroed? we're done. */ /* already zeroed? we're done. */
@ -910,10 +911,11 @@ static loff_t iomap_zero_range_actor(struct inode *inode, loff_t pos,
do { do {
s64 bytes; s64 bytes;
if (IS_DAX(inode)) if (IS_DAX(iter->inode))
bytes = dax_iomap_zero(pos, length, iomap); bytes = dax_iomap_zero(pos, length, iomap);
else else
bytes = iomap_zero(inode, pos, length, iomap, srcmap); bytes = iomap_zero(iter->inode, pos, length, iomap,
srcmap);
if (bytes < 0) if (bytes < 0)
return bytes; return bytes;
@ -931,19 +933,17 @@ int
iomap_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero, iomap_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero,
const struct iomap_ops *ops) const struct iomap_ops *ops)
{ {
loff_t ret; struct iomap_iter iter = {
.inode = inode,
.pos = pos,
.len = len,
.flags = IOMAP_ZERO,
};
int ret;
while (len > 0) { while ((ret = iomap_iter(&iter, ops)) > 0)
ret = iomap_apply(inode, pos, len, IOMAP_ZERO, iter.processed = iomap_zero_iter(&iter, did_zero);
ops, did_zero, iomap_zero_range_actor); return ret;
if (ret <= 0)
return ret;
pos += ret;
len -= ret;
}
return 0;
} }
EXPORT_SYMBOL_GPL(iomap_zero_range); EXPORT_SYMBOL_GPL(iomap_zero_range);