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ced1401: Convert driver to use get_user_pages_fast()

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Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jan Kara 2013-10-02 16:27:49 +02:00 committed by Greg Kroah-Hartman
parent d1a168eccf
commit f4ee2ccb6f
1 changed files with 1 additions and 4 deletions
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5
drivers/staging/ced1401/ced_ioc.c
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@ -692,10 +692,7 @@ static int SetArea(DEVICE_EXTENSION *pdx, int nArea, char __user *puBuf,
__func__, puBuf, dwLength, bCircular);
/* To pin down user pages we must first acquire the mapping semaphore. */
down_read(&current->mm->mmap_sem); /* get memory map semaphore */
nPages = get_user_pages(current, current->mm, ulStart, len, 1, 0,
pPages, NULL);
up_read(&current->mm->mmap_sem); /* release the semaphore */
nPages = get_user_pages_fast(ulStart, len, 1, pPages);
dev_dbg(&pdx->interface->dev, "%s nPages = %d", __func__, nPages);
if (nPages > 0) { /* if we succeeded */