LU-15722 osd-ldiskfs: fix write stuck for 64K PAGE_SIZE

LU-15722 osd-ldiskfs: fix write stuck for 64K PAGE_SIZE

This reverts a previous commit for large PAGE_SIZE to fix a stuck IO
issue in another way.

One more ldiskfs_map_blocks() can't fix the write stuck for PAGE_SIZE
> BLOCK_SIZE. It still gets stuck in some tests like sanity-dom fsx.
Because each time ldiskfs_map_blocks() lookup it only return a
continuous range physical blocks. If a page has multiple continuous
range blocks, then it needs multiple ldiskfs_map_blocks() lookups to
find out all the already mapped blocks.

The fixed idea here is to record the already written blocks of the
start page and skip them at the next write retry.

This also fix and cleanup osd_mark_page_io_done() when start_blocks
is non-zero.

Fixes: 176ea3a4599e ("LU-15722 osd-ldiskfs: fix IO write gets stuck for	64K PAGE_SIZE")
Change-Id: I9c14d5d0aa23e81837dacb01d050c091e6a79148
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/47563
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Alexey Lyashkov <alexey.lyashkov@hpe.com>