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| author | Miklos Szeredi <mszeredi@suse.cz> | 2010-05-25 15:06:06 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2010-05-25 15:06:06 +0200 |
| commit | 1bf94ca73ea524228b864275efa44373ebb939a0 (patch) | |
| tree | 6ad0f17f4da1f1dd8a1aae2c77e5865fb5f42f33 | |
| parent | 4aa0edd294f69e3100973a0ecfa1e6b5ab42d83a (diff) | |
| download | op-kernel-dev-1bf94ca73ea524228b864275efa44373ebb939a0.zip op-kernel-dev-1bf94ca73ea524228b864275efa44373ebb939a0.tar.gz | |
fuse: use get_user_pages_fast()
Replace uses of get_user_pages() with get_user_pages_fast(). It looks
nicer and should be faster in most cases.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| -rw-r--r-- | fs/fuse/dev.c | 5 | ||||
| -rw-r--r-- | fs/fuse/file.c | 5 |
2 files changed, 2 insertions, 8 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index eb7e942..4623018 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -551,10 +551,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs) cs->iov++; cs->nr_segs--; } - down_read(¤t->mm->mmap_sem); - err = get_user_pages(current, current->mm, cs->addr, 1, cs->write, 0, - &cs->pg, NULL); - up_read(¤t->mm->mmap_sem); + err = get_user_pages_fast(cs->addr, 1, cs->write, &cs->pg); if (err < 0) return err; BUG_ON(err != 1); diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 4172bfe..29bda05 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -994,10 +994,7 @@ static int fuse_get_user_pages(struct fuse_req *req, const char __user *buf, nbytes = min_t(size_t, nbytes, FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT); npages = (nbytes + offset + PAGE_SIZE - 1) >> PAGE_SHIFT; npages = clamp(npages, 1, FUSE_MAX_PAGES_PER_REQ); - down_read(¤t->mm->mmap_sem); - npages = get_user_pages(current, current->mm, user_addr, npages, !write, - 0, req->pages, NULL); - up_read(¤t->mm->mmap_sem); + npages = get_user_pages_fast(user_addr, npages, !write, req->pages); if (npages < 0) return npages; |
