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author | Austin Clements <[email protected]> | 2010-09-02 16:36:38 -0400 |
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committer | Austin Clements <[email protected]> | 2010-09-02 16:36:38 -0400 |
commit | 93a1e4cb07e329dc9550643f7fe8430da547497a (patch) | |
tree | b50ee8fa36dbcc9b43e155dd0e3114f95930c4f6 /vm.c | |
parent | f25a3f9a41de02116c39b0e65243d111e1cb1026 (diff) | |
download | xv6-labs-93a1e4cb07e329dc9550643f7fe8430da547497a.tar.gz xv6-labs-93a1e4cb07e329dc9550643f7fe8430da547497a.tar.bz2 xv6-labs-93a1e4cb07e329dc9550643f7fe8430da547497a.zip |
Fix comment capitalization
Diffstat (limited to 'vm.c')
-rw-r--r-- | vm.c | 28 |
1 files changed, 14 insertions, 14 deletions
@@ -27,7 +27,7 @@ ksegment(void) c->gdt[SEG_UCODE] = SEG(STA_X|STA_R, 0, 0xffffffff, DPL_USER); c->gdt[SEG_UDATA] = SEG(STA_W, 0, 0xffffffff, DPL_USER); - // map cpu, and curproc + // Map cpu, and curproc c->gdt[SEG_KCPU] = SEG(STA_W, &c->cpu, 8, 0); lgdt(c->gdt, sizeof(c->gdt)); @@ -38,8 +38,8 @@ ksegment(void) proc = 0; } -// return the address of the PTE in page table pgdir -// that corresponds to linear address va. if create!=0, +// Return the address of the PTE in page table pgdir +// that corresponds to linear address va. If create!=0, // create any required page table pages. static pte_t * walkpgdir(pde_t *pgdir, const void *va, int create) @@ -65,7 +65,7 @@ walkpgdir(pde_t *pgdir, const void *va, int create) return &pgtab[PTX(va)]; } -// create PTEs for linear addresses starting at la that refer to +// Create PTEs for linear addresses starting at la that refer to // physical addresses starting at pa. la and size might not // be page-aligned. static int @@ -152,12 +152,12 @@ vmenable(void) lcr0(cr0); } -// Switch h/w page table register to the kernel-only page table, for when -// no process is running. +// Switch h/w page table register to the kernel-only page table, +// for when no process is running. void switchkvm() { - lcr3(PADDR(kpgdir)); // Switch to the kernel page table + lcr3(PADDR(kpgdir)); // switch to the kernel page table } // Switch h/w page table and TSS registers to point to process p. @@ -180,8 +180,8 @@ switchuvm(struct proc *p) popcli(); } -// return the physical address that a given user address -// maps to. the result is also a kernel logical address, +// Return the physical address that a given user address +// maps to. The result is also a kernel logical address, // since the kernel maps the physical memory allocated to user // processes directly. char* @@ -224,10 +224,10 @@ loaduvm(pde_t *pgdir, char *addr, struct inode *ip, uint offset, uint sz) return 1; } -// allocate sz bytes more memory for a process starting at the +// Allocate sz bytes more memory for a process starting at the // given user address; allocates physical memory and page // table entries. addr and sz need not be page-aligned. -// it is a no-op for any parts of the requested memory +// It is a no-op for any parts of the requested memory // that are already allocated. int allocuvm(pde_t *pgdir, char *addr, uint sz) @@ -252,7 +252,7 @@ allocuvm(pde_t *pgdir, char *addr, uint sz) return 1; } -// deallocate some of the user pages. if addr is not page-aligned, +// Deallocate some of the user pages. If addr is not page-aligned, // then only deallocates starting at the next page boundary. int deallocuvm(pde_t *pgdir, char *addr, uint sz) @@ -274,7 +274,7 @@ deallocuvm(pde_t *pgdir, char *addr, uint sz) return 1; } -// free a page table and all the physical memory pages +// Free a page table and all the physical memory pages // in the user part. void freevm(pde_t *pgdir) @@ -291,7 +291,7 @@ freevm(pde_t *pgdir) kfree((void *) pgdir); } -// given a parent process's page table, create a copy +// Given a parent process's page table, create a copy // of it for a child. pde_t* copyuvm(pde_t *pgdir, uint sz) |