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iomap: Clean up __generic_write_end calling

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Move the call to __generic_write_end into iomap_write_end instead of
duplicating it in each of the three branches.  This requires open coding
the generic_write_end for the buffer_head case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2019-04-30 08:45:33 -07:00 committed by Darrick J. Wong
parent 73ce6abae5
commit dbc582b6fb
1 changed files with 8 additions and 10 deletions
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18
fs/iomap.c
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@ -730,13 +730,11 @@ __iomap_write_end(struct inode *inode, loff_t pos, unsigned len,
* uptodate page as a zero-length write, and force the caller to redo
* the whole thing.
*/
if (unlikely(copied < len && !PageUptodate(page))) {
copied = 0;
} else {
iomap_set_range_uptodate(page, offset_in_page(pos), len);
iomap_set_page_dirty(page);
}
return __generic_write_end(inode, pos, copied, page);
if (unlikely(copied < len && !PageUptodate(page)))
return 0;
iomap_set_range_uptodate(page, offset_in_page(pos), len);
iomap_set_page_dirty(page);
return copied;
}
static int
@ -753,7 +751,6 @@ iomap_write_end_inline(struct inode *inode, struct page *page,
kunmap_atomic(addr);
mark_inode_dirty(inode);
__generic_write_end(inode, pos, copied, page);
return copied;
}
@ -766,12 +763,13 @@ iomap_write_end(struct inode *inode, loff_t pos, unsigned len,
if (iomap->type == IOMAP_INLINE) {
ret = iomap_write_end_inline(inode, page, iomap, pos, copied);
} else if (iomap->flags & IOMAP_F_BUFFER_HEAD) {
ret = generic_write_end(NULL, inode->i_mapping, pos, len,
copied, page, NULL);
ret = block_write_end(NULL, inode->i_mapping, pos, len, copied,
page, NULL);
} else {
ret = __iomap_write_end(inode, pos, len, copied, page, iomap);
}
ret = __generic_write_end(inode, pos, ret, page);
if (iomap->page_done)
iomap->page_done(inode, pos, copied, page, iomap);