On Sat, Jun 23, 2018 at 10:12 AM, Coly Li colyli@suse.de wrote:
On 2018/6/22 9:48 PM, Arnd Bergmann wrote:
The get_seconds function is deprecated now since it returns a 32-bit value that will eventually overflow, and we are replacing it throughout the kernel with ktime_get_seconds() or ktime_get_real_seconds() that return a time64_t.
bcache uses get_seconds() to read the current system time and store it in the superblock as well as in uuid_entry structures that are user visible.
Unfortunately, the two structures in are still limited to 32 bits, so this won't fix any real problems but will still overflow in year 2106. Let's at least document that properly, in case we get an updated format in the future it can be fixed. We still have a long time before the overflow and checking the tools at https://github.com/koverstreet/bcache-tools reveals no access to any of them.
Signed-off-by: Arnd Bergmann arnd@arndb.de
Added to 4.19 for-next.
I noticed this isn't part of linux-next (yet). Did it get dropped?
Arnd