diff options
Diffstat (limited to 'arch/x86/kernel/ldt_64.c')
-rw-r--r-- | arch/x86/kernel/ldt_64.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/x86/kernel/ldt_64.c b/arch/x86/kernel/ldt_64.c index 3796523d616a..60e57abb8e90 100644 --- a/arch/x86/kernel/ldt_64.c +++ b/arch/x86/kernel/ldt_64.c | |||
@@ -96,13 +96,13 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm) | |||
96 | struct mm_struct * old_mm; | 96 | struct mm_struct * old_mm; |
97 | int retval = 0; | 97 | int retval = 0; |
98 | 98 | ||
99 | init_MUTEX(&mm->context.sem); | 99 | mutex_init(&mm->context.lock); |
100 | mm->context.size = 0; | 100 | mm->context.size = 0; |
101 | old_mm = current->mm; | 101 | old_mm = current->mm; |
102 | if (old_mm && old_mm->context.size > 0) { | 102 | if (old_mm && old_mm->context.size > 0) { |
103 | down(&old_mm->context.sem); | 103 | mutex_lock(&old_mm->context.lock); |
104 | retval = copy_ldt(&mm->context, &old_mm->context); | 104 | retval = copy_ldt(&mm->context, &old_mm->context); |
105 | up(&old_mm->context.sem); | 105 | mutex_unlock(&old_mm->context.lock); |
106 | } | 106 | } |
107 | return retval; | 107 | return retval; |
108 | } | 108 | } |
@@ -133,7 +133,7 @@ static int read_ldt(void __user * ptr, unsigned long bytecount) | |||
133 | if (bytecount > LDT_ENTRY_SIZE*LDT_ENTRIES) | 133 | if (bytecount > LDT_ENTRY_SIZE*LDT_ENTRIES) |
134 | bytecount = LDT_ENTRY_SIZE*LDT_ENTRIES; | 134 | bytecount = LDT_ENTRY_SIZE*LDT_ENTRIES; |
135 | 135 | ||
136 | down(&mm->context.sem); | 136 | mutex_lock(&mm->context.lock); |
137 | size = mm->context.size*LDT_ENTRY_SIZE; | 137 | size = mm->context.size*LDT_ENTRY_SIZE; |
138 | if (size > bytecount) | 138 | if (size > bytecount) |
139 | size = bytecount; | 139 | size = bytecount; |
@@ -141,7 +141,7 @@ static int read_ldt(void __user * ptr, unsigned long bytecount) | |||
141 | err = 0; | 141 | err = 0; |
142 | if (copy_to_user(ptr, mm->context.ldt, size)) | 142 | if (copy_to_user(ptr, mm->context.ldt, size)) |
143 | err = -EFAULT; | 143 | err = -EFAULT; |
144 | up(&mm->context.sem); | 144 | mutex_unlock(&mm->context.lock); |
145 | if (err < 0) | 145 | if (err < 0) |
146 | goto error_return; | 146 | goto error_return; |
147 | if (size != bytecount) { | 147 | if (size != bytecount) { |
@@ -193,7 +193,7 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode) | |||
193 | goto out; | 193 | goto out; |
194 | } | 194 | } |
195 | 195 | ||
196 | down(&mm->context.sem); | 196 | mutex_lock(&mm->context.lock); |
197 | if (ldt_info.entry_number >= (unsigned)mm->context.size) { | 197 | if (ldt_info.entry_number >= (unsigned)mm->context.size) { |
198 | error = alloc_ldt(¤t->mm->context, ldt_info.entry_number+1, 1); | 198 | error = alloc_ldt(¤t->mm->context, ldt_info.entry_number+1, 1); |
199 | if (error < 0) | 199 | if (error < 0) |
@@ -223,7 +223,7 @@ install: | |||
223 | error = 0; | 223 | error = 0; |
224 | 224 | ||
225 | out_unlock: | 225 | out_unlock: |
226 | up(&mm->context.sem); | 226 | mutex_unlock(&mm->context.lock); |
227 | out: | 227 | out: |
228 | return error; | 228 | return error; |
229 | } | 229 | } |