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authorDaniel Walker <dwalker@mvista.com>2008-02-04 22:31:26 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-05 09:44:31 -0800
commit01ac835fdd121f36dded404af15225101f6ccee3 (patch)
tree7c147e37003fdad5525ce4b036917a29d9cdd1a2 /arch/um/sys-i386
parent2278c5ac9d39699bac44250b9c532de0c02cb16a (diff)
uml: LDT mutex conversion
The ldt.semaphore conforms to the new struct mutex requirments, so I converted it to use the new API and changed the name. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/sys-i386')
-rw-r--r--arch/um/sys-i386/ldt.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c
index 505ed5c9a68d..a34263e6b08d 100644
--- a/arch/um/sys-i386/ldt.c
+++ b/arch/um/sys-i386/ldt.c
@@ -147,7 +147,7 @@ static int read_ldt(void __user * ptr, unsigned long bytecount)
if (ptrace_ldt)
return read_ldt_from_host(ptr, bytecount);
- down(&ldt->semaphore);
+ mutex_lock(&ldt->lock);
if (ldt->entry_count <= LDT_DIRECT_ENTRIES) {
size = LDT_ENTRY_SIZE*LDT_DIRECT_ENTRIES;
if (size > bytecount)
@@ -171,7 +171,7 @@ static int read_ldt(void __user * ptr, unsigned long bytecount)
ptr += size;
}
}
- up(&ldt->semaphore);
+ mutex_unlock(&ldt->lock);
if (bytecount == 0 || err == -EFAULT)
goto out;
@@ -229,7 +229,7 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int func)
}
if (!ptrace_ldt)
- down(&ldt->semaphore);
+ mutex_lock(&ldt->lock);
err = write_ldt_entry(mm_idp, func, &ldt_info, &addr, 1);
if (err)
@@ -289,7 +289,7 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int func)
err = 0;
out_unlock:
- up(&ldt->semaphore);
+ mutex_unlock(&ldt->lock);
out:
return err;
}
@@ -396,7 +396,7 @@ long init_new_ldt(struct mm_context *new_mm, struct mm_context *from_mm)
if (!ptrace_ldt)
- init_MUTEX(&new_mm->ldt.semaphore);
+ mutex_init(&new_mm->ldt.lock);
if (!from_mm) {
memset(&desc, 0, sizeof(desc));
@@ -456,7 +456,7 @@ long init_new_ldt(struct mm_context *new_mm, struct mm_context *from_mm)
* i.e., we have to use the stub for modify_ldt, which
* can't handle the big read buffer of up to 64kB.
*/
- down(&from_mm->ldt.semaphore);
+ mutex_lock(&from_mm->ldt.lock);
if (from_mm->ldt.entry_count <= LDT_DIRECT_ENTRIES)
memcpy(new_mm->ldt.u.entries, from_mm->ldt.u.entries,
sizeof(new_mm->ldt.u.entries));
@@ -475,7 +475,7 @@ long init_new_ldt(struct mm_context *new_mm, struct mm_context *from_mm)
}
}
new_mm->ldt.entry_count = from_mm->ldt.entry_count;
- up(&from_mm->ldt.semaphore);
+ mutex_unlock(&from_mm->ldt.lock);
}
out:

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