Revert "io_uring: wait potential ->release() on resurrect"
This reverts commit 88f171ab . I ran into a case where the ref resurrect now spins, so revert this change for now until we can further investigate why it's broken. The bug seems to indicate spinning on the lock itself, likely there's some ABBA deadlock involved: [<0>] __percpu_ref_switch_mode+0x45/0x180 [<0>] percpu_ref_resurrect+0x46/0x70 [<0>] io_refs_resurrect+0x25/0xa0 [<0>] __io_uring_register+0x135/0x10c0 [<0>] __x64_sys_io_uring_register+0xc2/0x1a0 [<0>] do_syscall_64+0x42/0x110 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Signed-off-by:Jens Axboe <axboe@kernel.dk>
parent
e5547d2c
Please register or sign in to comment