diff options
author | Maneesh Soni <maneesh@in.ibm.com> | 2005-06-25 17:58:28 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-25 19:24:55 -0400 |
commit | 72414d3f1d22fc3e311b162fca95c430048d38ce (patch) | |
tree | 46850947c1602357dd3c51d8d6ebaa5805507f9f /arch/x86_64/kernel/machine_kexec.c | |
parent | 4f339ecb30c759f94a29992d4635d9194132b6cf (diff) |
[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/kernel/machine_kexec.c')
-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 @@ | |||
32 | #define L2_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) | 32 | #define L2_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) |
33 | #define L3_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) | 33 | #define L3_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) |
34 | 34 | ||
35 | static void init_level2_page( | 35 | static void init_level2_page(u64 *level2p, unsigned long addr) |
36 | u64 *level2p, unsigned long addr) | ||
37 | { | 36 | { |
38 | unsigned long end_addr; | 37 | unsigned long end_addr; |
38 | |||
39 | addr &= PAGE_MASK; | 39 | addr &= PAGE_MASK; |
40 | end_addr = addr + LEVEL2_SIZE; | 40 | end_addr = addr + LEVEL2_SIZE; |
41 | while(addr < end_addr) { | 41 | while (addr < end_addr) { |
42 | *(level2p++) = addr | L1_ATTR; | 42 | *(level2p++) = addr | L1_ATTR; |
43 | addr += LEVEL1_SIZE; | 43 | addr += LEVEL1_SIZE; |
44 | } | 44 | } |
45 | } | 45 | } |
46 | 46 | ||
47 | static int init_level3_page(struct kimage *image, | 47 | static int init_level3_page(struct kimage *image, u64 *level3p, |
48 | u64 *level3p, unsigned long addr, unsigned long last_addr) | 48 | unsigned long addr, unsigned long last_addr) |
49 | { | 49 | { |
50 | unsigned long end_addr; | 50 | unsigned long end_addr; |
51 | int result; | 51 | int result; |
52 | |||
52 | result = 0; | 53 | result = 0; |
53 | addr &= PAGE_MASK; | 54 | addr &= PAGE_MASK; |
54 | end_addr = addr + LEVEL3_SIZE; | 55 | end_addr = addr + LEVEL3_SIZE; |
55 | while((addr < last_addr) && (addr < end_addr)) { | 56 | while ((addr < last_addr) && (addr < end_addr)) { |
56 | struct page *page; | 57 | struct page *page; |
57 | u64 *level2p; | 58 | u64 *level2p; |
59 | |||
58 | page = kimage_alloc_control_pages(image, 0); | 60 | page = kimage_alloc_control_pages(image, 0); |
59 | if (!page) { | 61 | if (!page) { |
60 | result = -ENOMEM; | 62 | result = -ENOMEM; |
@@ -66,7 +68,7 @@ static int init_level3_page(struct kimage *image, | |||
66 | addr += LEVEL2_SIZE; | 68 | addr += LEVEL2_SIZE; |
67 | } | 69 | } |
68 | /* clear the unused entries */ | 70 | /* clear the unused entries */ |
69 | while(addr < end_addr) { | 71 | while (addr < end_addr) { |
70 | *(level3p++) = 0; | 72 | *(level3p++) = 0; |
71 | addr += LEVEL2_SIZE; | 73 | addr += LEVEL2_SIZE; |
72 | } | 74 | } |
@@ -75,17 +77,19 @@ out: | |||
75 | } | 77 | } |
76 | 78 | ||
77 | 79 | ||
78 | static int init_level4_page(struct kimage *image, | 80 | static int init_level4_page(struct kimage *image, u64 *level4p, |
79 | u64 *level4p, unsigned long addr, unsigned long last_addr) | 81 | unsigned long addr, unsigned long last_addr) |
80 | { | 82 | { |
81 | unsigned long end_addr; | 83 | unsigned long end_addr; |
82 | int result; | 84 | int result; |
85 | |||
83 | result = 0; | 86 | result = 0; |
84 | addr &= PAGE_MASK; | 87 | addr &= PAGE_MASK; |
85 | end_addr = addr + LEVEL4_SIZE; | 88 | end_addr = addr + LEVEL4_SIZE; |
86 | while((addr < last_addr) && (addr < end_addr)) { | 89 | while ((addr < last_addr) && (addr < end_addr)) { |
87 | struct page *page; | 90 | struct page *page; |
88 | u64 *level3p; | 91 | u64 *level3p; |
92 | |||
89 | page = kimage_alloc_control_pages(image, 0); | 93 | page = kimage_alloc_control_pages(image, 0); |
90 | if (!page) { | 94 | if (!page) { |
91 | result = -ENOMEM; | 95 | result = -ENOMEM; |
@@ -100,11 +104,11 @@ static int init_level4_page(struct kimage *image, | |||
100 | addr += LEVEL3_SIZE; | 104 | addr += LEVEL3_SIZE; |
101 | } | 105 | } |
102 | /* clear the unused entries */ | 106 | /* clear the unused entries */ |
103 | while(addr < end_addr) { | 107 | while (addr < end_addr) { |
104 | *(level4p++) = 0; | 108 | *(level4p++) = 0; |
105 | addr += LEVEL3_SIZE; | 109 | addr += LEVEL3_SIZE; |
106 | } | 110 | } |
107 | out: | 111 | out: |
108 | return result; | 112 | return result; |
109 | } | 113 | } |
110 | 114 | ||
@@ -113,7 +117,7 @@ static int init_pgtable(struct kimage *image, unsigned long start_pgtable) | |||
113 | { | 117 | { |
114 | u64 *level4p; | 118 | u64 *level4p; |
115 | level4p = (u64 *)__va(start_pgtable); | 119 | level4p = (u64 *)__va(start_pgtable); |
116 | return init_level4_page(image, level4p, 0, end_pfn << PAGE_SHIFT); | 120 | return init_level4_page(image, level4p, 0, end_pfn << PAGE_SHIFT); |
117 | } | 121 | } |
118 | 122 | ||
119 | static void set_idt(void *newidt, u16 limit) | 123 | static void set_idt(void *newidt, u16 limit) |
@@ -159,9 +163,10 @@ static void load_segments(void) | |||
159 | #undef __STR | 163 | #undef __STR |
160 | } | 164 | } |
161 | 165 | ||
162 | typedef NORET_TYPE void (*relocate_new_kernel_t)( | 166 | typedef NORET_TYPE void (*relocate_new_kernel_t)(unsigned long indirection_page, |
163 | unsigned long indirection_page, unsigned long control_code_buffer, | 167 | unsigned long control_code_buffer, |
164 | unsigned long start_address, unsigned long pgtable) ATTRIB_NORET; | 168 | unsigned long start_address, |
169 | unsigned long pgtable) ATTRIB_NORET; | ||
165 | 170 | ||
166 | const extern unsigned char relocate_new_kernel[]; | 171 | const extern unsigned char relocate_new_kernel[]; |
167 | const extern unsigned long relocate_new_kernel_size; | 172 | const extern unsigned long relocate_new_kernel_size; |
@@ -172,17 +177,17 @@ int machine_kexec_prepare(struct kimage *image) | |||
172 | int result; | 177 | int result; |
173 | 178 | ||
174 | /* Calculate the offsets */ | 179 | /* Calculate the offsets */ |
175 | start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; | 180 | start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; |
176 | control_code_buffer = start_pgtable + 4096UL; | 181 | control_code_buffer = start_pgtable + 4096UL; |
177 | 182 | ||
178 | /* Setup the identity mapped 64bit page table */ | 183 | /* Setup the identity mapped 64bit page table */ |
179 | result = init_pgtable(image, start_pgtable); | 184 | result = init_pgtable(image, start_pgtable); |
180 | if (result) { | 185 | if (result) |
181 | return result; | 186 | return result; |
182 | } | ||
183 | 187 | ||
184 | /* Place the code in the reboot code buffer */ | 188 | /* Place the code in the reboot code buffer */ |
185 | memcpy(__va(control_code_buffer), relocate_new_kernel, relocate_new_kernel_size); | 189 | memcpy(__va(control_code_buffer), relocate_new_kernel, |
190 | relocate_new_kernel_size); | ||
186 | 191 | ||
187 | return 0; | 192 | return 0; |
188 | } | 193 | } |
@@ -207,8 +212,8 @@ NORET_TYPE void machine_kexec(struct kimage *image) | |||
207 | local_irq_disable(); | 212 | local_irq_disable(); |
208 | 213 | ||
209 | /* Calculate the offsets */ | 214 | /* Calculate the offsets */ |
210 | page_list = image->head; | 215 | page_list = image->head; |
211 | start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; | 216 | start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; |
212 | control_code_buffer = start_pgtable + 4096UL; | 217 | control_code_buffer = start_pgtable + 4096UL; |
213 | 218 | ||
214 | /* Set the low half of the page table to my identity mapped | 219 | /* Set the low half of the page table to my identity mapped |