From: Waldemar Kozaczuk <jwkozac...@gmail.com>
Committer: Nadav Har'El <n...@scylladb.com>
Branch: master
mprotect: page-align len parameter instead of returning error
Signed-off-by: Waldemar Kozaczuk <jwkozac...@gmail.com>
Message-Id: <20190629040727.9569-1-jwkozac...@gmail.com>
---
diff --git a/libc/mman.cc b/libc/mman.cc
--- a/libc/mman.cc
+++ b/libc/mman.cc
@@ -88,11 +88,12 @@ int mprotect(void *addr, size_t len, int prot)
abort("mprotect() on linear map not supported\n");
}
- if (!mmu::is_page_aligned(addr) || !mmu::is_page_aligned(len)) {
+ if (!mmu::is_page_aligned(addr)) {
// address not page aligned
return libc_error(EINVAL);
}
+ len = align_up(len, mmu::page_size);
return mmu::mprotect(addr, len, libc_prot_to_perm(prot)).to_libc();
}
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