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Kernel: Fix incorrect EFAULTs when syscall would write into COW pages.

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This commit is contained in:
Andreas Kling 2019-01-25 01:39:15 +01:00
parent a4a106a430
commit 11b73c38d8
4 changed files with 38 additions and 32 deletions
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1
Kernel/MemoryManager.h
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@ -246,6 +246,7 @@ private:
void remove_identity_mapping(PageDirectory&, LinearAddress, size_t);
static Region* region_from_laddr(Process&, LinearAddress);
static const Region* region_from_laddr(const Process&, LinearAddress);
bool copy_on_write(Region&, unsigned page_index_in_region);
bool page_in_from_inode(Region&, unsigned page_index_in_region);