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| author | Chao Yu <chao@kernel.org> | 2024-03-26 14:28:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-12 12:12:14 +0300 |
| commit | 4b3609e6c805498a813fade1e87485d53c693cc2 (patch) | |
| tree | 0c6a16d176771794453dc648c5dbdd4681e34983 /include/linux/fpga/fpga-mgr.h | |
| parent | 2b2611a42462c6c685d40b5f3aedcd8d21c27065 (diff) | |
| download | linux-4b3609e6c805498a813fade1e87485d53c693cc2.tar.xz | |
f2fs: fix to wait on page writeback in __clone_blkaddrs()
[ Upstream commit d3876e34e7e789e2cbdd782360fef2a777391082 ]
In below race condition, dst page may become writeback status
in __clone_blkaddrs(), it needs to wait writeback before update,
fix it.
Thread A GC Thread
- f2fs_move_file_range
- filemap_write_and_wait_range(dst)
- gc_data_segment
- f2fs_down_write(dst)
- move_data_page
- set_page_writeback(dst_page)
- f2fs_submit_page_write
- f2fs_up_write(dst)
- f2fs_down_write(dst)
- __exchange_data_block
- __clone_blkaddrs
- f2fs_get_new_data_page
- memcpy_page
Fixes: 0a2aa8fbb969 ("f2fs: refactor __exchange_data_block for speed up")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions