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author | Florian Weimer <fweimer@redhat.com> | 2017-08-30 17:16:08 +0200 |
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committer | Florian Weimer <fweimer@redhat.com> | 2017-08-30 20:08:34 +0200 |
commit | a9da0bb2667ab20f1dbcd0a9ae6846db02fbc96a (patch) | |
tree | 9422f3ae82df4bef2ac63424b6f946be62e054d6 /malloc/arena.c | |
parent | ac3ed168d0c0b2b702319ac0db72c9b475a8c72e (diff) | |
download | glibc-a9da0bb2667ab20f1dbcd0a9ae6846db02fbc96a.tar.gz glibc-a9da0bb2667ab20f1dbcd0a9ae6846db02fbc96a.tar.xz glibc-a9da0bb2667ab20f1dbcd0a9ae6846db02fbc96a.zip |
malloc: Remove corrupt arena flag
This is no longer needed because we now abort immediately once heap corruption is detected.
Diffstat (limited to 'malloc/arena.c')
-rw-r--r-- | malloc/arena.c | 20 |
1 files changed, 2 insertions, 18 deletions
diff --git a/malloc/arena.c b/malloc/arena.c index 39cbfbc282..afd423240a 100644 --- a/malloc/arena.c +++ b/malloc/arena.c @@ -116,7 +116,7 @@ int __malloc_initialized = -1; } while (0) #define arena_lock(ptr, size) do { \ - if (ptr && !arena_is_corrupt (ptr)) \ + if (ptr) \ __libc_lock_lock (ptr->mutex); \ else \ ptr = arena_get2 ((size), NULL); \ @@ -832,7 +832,7 @@ reused_arena (mstate avoid_arena) result = next_to_use; do { - if (!arena_is_corrupt (result) && !__libc_lock_trylock (result->mutex)) + if (!__libc_lock_trylock (result->mutex)) goto out; /* FIXME: This is a data race, see _int_new_arena. */ @@ -845,18 +845,6 @@ reused_arena (mstate avoid_arena) if (result == avoid_arena) result = result->next; - /* Make sure that the arena we get is not corrupted. */ - mstate begin = result; - while (arena_is_corrupt (result) || result == avoid_arena) - { - result = result->next; - if (result == begin) - /* We looped around the arena list. We could not find any - arena that was either not corrupted or not the one we - wanted to avoid. */ - return NULL; - } - /* No arena available without contention. Wait for the next in line. */ LIBC_PROBE (memory_arena_reuse_wait, 3, &result->mutex, result, avoid_arena); __libc_lock_lock (result->mutex); @@ -953,10 +941,6 @@ arena_get_retry (mstate ar_ptr, size_t bytes) if (ar_ptr != &main_arena) { __libc_lock_unlock (ar_ptr->mutex); - /* Don't touch the main arena if it is corrupt. */ - if (arena_is_corrupt (&main_arena)) - return NULL; - ar_ptr = &main_arena; __libc_lock_lock (ar_ptr->mutex); } |