diff options
author | Nick Piggin <npiggin@suse.de> | 2008-07-26 02:45:25 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-26 19:00:06 (GMT) |
commit | f5dd33c494a427b1d1a3b574de5c9e511c888864 (patch) | |
tree | fc6f61ffe488fe044f9e167b31b1c4ecd5f3f54c /fs/bio.c | |
parent | 8174c430e445a93016ef18f717fe570214fa38bf (diff) | |
download | linux-fsl-qoriq-f5dd33c494a427b1d1a3b574de5c9e511c888864.tar.xz |
dio: use get_user_pages_fast
Use get_user_pages_fast in the common/generic block and fs direct IO paths.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Zach Brown <zach.brown@oracle.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Reviewed-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/bio.c')
-rw-r--r-- | fs/bio.c | 8 |
1 files changed, 2 insertions, 6 deletions
@@ -721,12 +721,8 @@ static struct bio *__bio_map_user_iov(struct request_queue *q, const int local_nr_pages = end - start; const int page_limit = cur_page + local_nr_pages; - down_read(¤t->mm->mmap_sem); - ret = get_user_pages(current, current->mm, uaddr, - local_nr_pages, - write_to_vm, 0, &pages[cur_page], NULL); - up_read(¤t->mm->mmap_sem); - + ret = get_user_pages_fast(uaddr, local_nr_pages, + write_to_vm, &pages[cur_page]); if (ret < local_nr_pages) { ret = -EFAULT; goto out_unmap; |