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block: limit disk max sectors to (LLONG_MAX >> 9)
authorMing Lei <ming.lei@redhat.com>
Wed, 15 Jan 2025 09:26:48 +0000 (17:26 +0800)
committerJens Axboe <axboe@kernel.dk>
Wed, 15 Jan 2025 22:46:56 +0000 (15:46 -0700)
commit3d9a9e9a77c5ebecda43b514f2b9659644b904d0
treef880b619f7a0c2430b18829224f309a1103a348atree
parent5d1f7ee7f0b6362c9148d500aeebe49b64b64df4commit | diff
block: limit disk max sectors to (LLONG_MAX >> 9)

Kernel `loff_t` is defined as `long long int`, so we can't support disk
which size is > LLONG_MAX.

There are many virtual block drivers, and hardware may report bad capacity
too, so limit max sectors to (LLONG_MAX >> 9) for avoiding potential
trouble.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250115092648.1104452-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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