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author | Austin Clements <[email protected]> | 2011-09-02 14:11:16 -0400 |
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committer | Austin Clements <[email protected]> | 2011-09-02 14:11:16 -0400 |
commit | cf7b6702934018bfbf6955c3d413ac43024a96ad (patch) | |
tree | 292a54d4c26169ada50d6060897cfa7b486b1a33 | |
parent | 82bb0b56c62b3595d04e6224a67397f221298166 (diff) | |
download | xv6-labs-cf7b6702934018bfbf6955c3d413ac43024a96ad.tar.gz xv6-labs-cf7b6702934018bfbf6955c3d413ac43024a96ad.tar.bz2 xv6-labs-cf7b6702934018bfbf6955c3d413ac43024a96ad.zip |
Make mappages fit on the page
-rw-r--r-- | vm.c | 3 |
1 files changed, 1 insertions, 2 deletions
@@ -77,8 +77,7 @@ mappages(pde_t *pgdir, void *va, uint size, uint pa, a = (char *) PGROUNDDOWN((uint) va); last = (char *) PGROUNDDOWN(((uint) va) + size - 1); for(;;){ - pte = walkpgdir(pgdir, a, alloc); - if(pte == 0) + if((pte = walkpgdir(pgdir, a, alloc) == 0) return -1; if(*pte & PTE_P) panic("remap"); |