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author | Maneesh Soni <maneesh@in.ibm.com> | 2005-06-25 14:58:28 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-25 16:24:55 -0700 |
commit | 72414d3f1d22fc3e311b162fca95c430048d38ce (patch) | |
tree | 46850947c1602357dd3c51d8d6ebaa5805507f9f /arch/x86_64 | |
parent | 4f339ecb30c759f94a29992d4635d9194132b6cf (diff) | |
download | blackbird-op-linux-72414d3f1d22fc3e311b162fca95c430048d38ce.tar.gz blackbird-op-linux-72414d3f1d22fc3e311b162fca95c430048d38ce.zip |
[PATCH] kexec code cleanup
o Following patch provides purely cosmetic changes and corrects CodingStyle
guide lines related certain issues like below in kexec related files
o braces for one line "if" statements, "for" loops,
o more than 80 column wide lines,
o No space after "while", "for" and "switch" key words
o Changes:
o take-2: Removed the extra tab before "case" key words.
o take-3: Put operator at the end of line and space before "*/"
Signed-off-by: Maneesh Soni <maneesh@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64')
-rw-r--r-- | arch/x86_64/kernel/machine_kexec.c | 49 |
1 files changed, 27 insertions, 22 deletions
diff --git a/arch/x86_64/kernel/machine_kexec.c b/arch/x86_64/kernel/machine_kexec.c index 200b5993f8d9..60d1eff41567 100644 --- a/arch/x86_64/kernel/machine_kexec.c +++ b/arch/x86_64/kernel/machine_kexec.c @@ -32,29 +32,31 @@ #define L2_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) #define L3_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) -static void init_level2_page( - u64 *level2p, unsigned long addr) +static void init_level2_page(u64 *level2p, unsigned long addr) { unsigned long end_addr; + addr &= PAGE_MASK; end_addr = addr + LEVEL2_SIZE; - while(addr < end_addr) { + while (addr < end_addr) { *(level2p++) = addr | L1_ATTR; addr += LEVEL1_SIZE; } } -static int init_level3_page(struct kimage *image, - u64 *level3p, unsigned long addr, unsigned long last_addr) +static int init_level3_page(struct kimage *image, u64 *level3p, + unsigned long addr, unsigned long last_addr) { unsigned long end_addr; int result; + result = 0; addr &= PAGE_MASK; end_addr = addr + LEVEL3_SIZE; - while((addr < last_addr) && (addr < end_addr)) { + while ((addr < last_addr) && (addr < end_addr)) { struct page *page; u64 *level2p; + page = kimage_alloc_control_pages(image, 0); if (!page) { result = -ENOMEM; @@ -66,7 +68,7 @@ static int init_level3_page(struct kimage *image, addr += LEVEL2_SIZE; } /* clear the unused entries */ - while(addr < end_addr) { + while (addr < end_addr) { *(level3p++) = 0; addr += LEVEL2_SIZE; } @@ -75,17 +77,19 @@ out: } -static int init_level4_page(struct kimage *image, - u64 *level4p, unsigned long addr, unsigned long last_addr) +static int init_level4_page(struct kimage *image, u64 *level4p, + unsigned long addr, unsigned long last_addr) { unsigned long end_addr; int result; + result = 0; addr &= PAGE_MASK; end_addr = addr + LEVEL4_SIZE; - while((addr < last_addr) && (addr < end_addr)) { + while ((addr < last_addr) && (addr < end_addr)) { struct page *page; u64 *level3p; + page = kimage_alloc_control_pages(image, 0); if (!page) { result = -ENOMEM; @@ -100,11 +104,11 @@ static int init_level4_page(struct kimage *image, addr += LEVEL3_SIZE; } /* clear the unused entries */ - while(addr < end_addr) { + while (addr < end_addr) { *(level4p++) = 0; addr += LEVEL3_SIZE; } - out: +out: return result; } @@ -113,7 +117,7 @@ static int init_pgtable(struct kimage *image, unsigned long start_pgtable) { u64 *level4p; level4p = (u64 *)__va(start_pgtable); - return init_level4_page(image, level4p, 0, end_pfn << PAGE_SHIFT); + return init_level4_page(image, level4p, 0, end_pfn << PAGE_SHIFT); } static void set_idt(void *newidt, u16 limit) @@ -159,9 +163,10 @@ static void load_segments(void) #undef __STR } -typedef NORET_TYPE void (*relocate_new_kernel_t)( - unsigned long indirection_page, unsigned long control_code_buffer, - unsigned long start_address, unsigned long pgtable) ATTRIB_NORET; +typedef NORET_TYPE void (*relocate_new_kernel_t)(unsigned long indirection_page, + unsigned long control_code_buffer, + unsigned long start_address, + unsigned long pgtable) ATTRIB_NORET; const extern unsigned char relocate_new_kernel[]; const extern unsigned long relocate_new_kernel_size; @@ -172,17 +177,17 @@ int machine_kexec_prepare(struct kimage *image) int result; /* Calculate the offsets */ - start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; + start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; control_code_buffer = start_pgtable + 4096UL; /* Setup the identity mapped 64bit page table */ result = init_pgtable(image, start_pgtable); - if (result) { + if (result) return result; - } /* Place the code in the reboot code buffer */ - memcpy(__va(control_code_buffer), relocate_new_kernel, relocate_new_kernel_size); + memcpy(__va(control_code_buffer), relocate_new_kernel, + relocate_new_kernel_size); return 0; } @@ -207,8 +212,8 @@ NORET_TYPE void machine_kexec(struct kimage *image) local_irq_disable(); /* Calculate the offsets */ - page_list = image->head; - start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; + page_list = image->head; + start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; control_code_buffer = start_pgtable + 4096UL; /* Set the low half of the page table to my identity mapped |