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| author | Emilio G. Cota <cota@braap.org> | 2020-06-12 20:02:29 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2020-06-16 14:49:05 +0100 |
| commit | 3f640eb8812f92dfcc4947fc1e7cd9004456d58a (patch) | |
| tree | c86051f145f90c460ce8b0a3091b21f0aad61218 /accel | |
| parent | 938e897a6615b63093881e8b58206f6f69212abe (diff) | |
| download | qemu-3f640eb8812f92dfcc4947fc1e7cd9004456d58a.zip qemu-3f640eb8812f92dfcc4947fc1e7cd9004456d58a.tar.gz qemu-3f640eb8812f92dfcc4947fc1e7cd9004456d58a.tar.bz2 | |
translate-all: call qemu_spin_destroy for PageDesc
The radix tree is append-only, but we can fail to insert
a PageDesc if the insertion races with another thread.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-8-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-11-alex.bennee@linaro.org>
Diffstat (limited to 'accel')
| -rw-r--r-- | accel/tcg/translate-all.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index c937210..c3d3705 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -547,6 +547,15 @@ static PageDesc *page_find_alloc(tb_page_addr_t index, int alloc) #endif existing = atomic_cmpxchg(lp, NULL, pd); if (unlikely(existing)) { +#ifndef CONFIG_USER_ONLY + { + int i; + + for (i = 0; i < V_L2_SIZE; i++) { + qemu_spin_destroy(&pd[i].lock); + } + } +#endif g_free(pd); pd = existing; } |