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ceph: pass proper page offset to copy_page_to_iter()

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Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
This commit is contained in:
Yan, Zheng 2014-07-02 10:13:00 +08:00 committed by Ilya Dryomov
parent c5c9a0bf1b
commit 5aaa432ad9
1 changed files with 5 additions and 2 deletions
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7
fs/ceph/file.c
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@ -470,8 +470,11 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct iov_iter *i,
size_t left = ret;
while (left) {
int copy = min_t(size_t, PAGE_SIZE, left);
l = copy_page_to_iter(pages[k++], 0, copy, i);
size_t page_off = off & ~PAGE_MASK;
size_t copy = min_t(size_t,
PAGE_SIZE - page_off, left);
l = copy_page_to_iter(pages[k++], page_off,
copy, i);
off += l;
left -= l;
if (l < copy)