diff options
| author |   Anton Blanchard <anton@samba.org> | 2010-02-07 12:30:12 +0000 |
|---|---|---|
| committer |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-02-09 13:56:07 +1100 |
| commit | 7317ac87119dfb6fac36af4bcc64a25b62b5898d (patch) | |
| tree | b426ba6d983f0eb0eb6273d392349d8f979f95a2 /arch/powerpc/mm/mmu_context_hash64.c | |
| parent | powerpc: Add last sysfs file and dump of ftrace buffer to oops printout (diff) | |
| download | linux-dev-7317ac87119dfb6fac36af4bcc64a25b62b5898d.tar.xz linux-dev-7317ac87119dfb6fac36af4bcc64a25b62b5898d.zip | |
powerpc: Convert mmu context allocator from idr to ida
We can use the much more lightweight ida allocator since we don't
need the pointer storage idr provides.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm/mmu_context_hash64.c')
| -rw-r--r-- | arch/powerpc/mm/mmu_context_hash64.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/mm/mmu_context_hash64.c b/arch/powerpc/mm/mmu_context_hash64.c index b910d37aea1a..51622daae09d 100644 --- a/arch/powerpc/mm/mmu_context_hash64.c +++ b/arch/powerpc/mm/mmu_context_hash64.c @@ -23,7 +23,7 @@ #include <asm/mmu_context.h> static DEFINE_SPINLOCK(mmu_context_lock); -static DEFINE_IDR(mmu_context_idr); +static DEFINE_IDA(mmu_context_ida); /* * The proto-VSID space has 2^35 - 1 segments available for user mappings. @@ -39,11 +39,11 @@ int __init_new_context(void) int err; again: - if (!idr_pre_get(&mmu_context_idr, GFP_KERNEL)) + if (!ida_pre_get(&mmu_context_ida, GFP_KERNEL)) return -ENOMEM; spin_lock(&mmu_context_lock); - err = idr_get_new_above(&mmu_context_idr, NULL, 1, &index); + err = ida_get_new_above(&mmu_context_ida, 1, &index); spin_unlock(&mmu_context_lock); if (err == -EAGAIN) @@ -53,7 +53,7 @@ again: if (index > MAX_CONTEXT) { spin_lock(&mmu_context_lock); - idr_remove(&mmu_context_idr, index); + ida_remove(&mmu_context_ida, index); spin_unlock(&mmu_context_lock); return -ENOMEM; } @@ -85,7 +85,7 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm) void __destroy_context(int context_id) { spin_lock(&mmu_context_lock); - idr_remove(&mmu_context_idr, context_id); + ida_remove(&mmu_context_ida, context_id); spin_unlock(&mmu_context_lock); } EXPORT_SYMBOL_GPL(__destroy_context); |