diff options
| author | San Mehat <san@google.com> | 2010-04-19 07:45:33 -0700 |
|---|---|---|
| committer | Gary King <gking@nvidia.com> | 2010-05-23 14:43:03 -0700 |
| commit | 6c8de118e38111d2c2e07ee5ad7572b582f0a1c6 (patch) | |
| tree | d96e795f7f97915be8ac1cf9cbbeee1ba6ece005 /fs | |
| parent | 734c20b5d494b72c0a941e18881a61793d2aae6c (diff) | |
Revert "proc: pagemap: Hold mmap_sem during page walk"
This reverts commit 0bf551684025a5f0f3c9aac694cd5cf73706cb70.
Reverting for proper up-stream fix
Signed-off-by: San Mehat <san@google.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/proc/task_mmu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 3f300c1a9bd0..2a1bef9203c6 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -726,6 +726,8 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, down_read(¤t->mm->mmap_sem); ret = get_user_pages(current, current->mm, uaddr, pagecount, 1, 0, pages, NULL); + up_read(¤t->mm->mmap_sem); + if (ret < 0) goto out_free; @@ -774,7 +776,6 @@ out_pages: page_cache_release(page); } out_free: - up_read(¤t->mm->mmap_sem); kfree(pages); out_mm: mmput(mm); |