On 6/30/24 8:21 PM, Hui Qi wrote:
The high 32 bits is filled with arbitrary value.
Which application does this? This is a user space bug. Additionally, the patch title looks weird. Please improve the patch title.
If hint is set WRITE_LIFE_SHORT (2) by fcntl, the value is 0xf6d1374000000002,
This is a user space bug. The fcntl() man page clearly mentions that F_SET_RW_HINT accepts a 64-bit value. See also https://www.man7.org/linux/man-pages/man2/fcntl.2.html.
which causes rw_hint_valid always returns false. i_write_hint of inode and bi_write_hint of bio are both enum rw_hint. The value would be truncated only if the element value exceeds 2^32. Signed-off-by: Hui Qi <hui81.qi@xxxxxxxxxxx>
If you want this patch to be merged you will have to add Fixes: and Cc: stable tags. Bart.
