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pnfs/blocklayout: fix end calculation in pnfs_num_cont_bytes

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Use the number of pages in the pagecache mapping instead of the
number of pnfs requests which is only slightly related.

Reported-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Christoph Hellwig 2014-11-24 16:47:02 -05:00 committed by Trond Myklebust
parent 1a867a0898
commit 6a74c0c940
1 changed files with 1 additions and 1 deletions
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2
fs/nfs/blocklayout/blocklayout.c
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@ -812,7 +812,7 @@ static u64 pnfs_num_cont_bytes(struct inode *inode, pgoff_t idx)
/* Optimize common case that writes from 0 to end of file */
end = DIV_ROUND_UP(i_size_read(inode), PAGE_CACHE_SIZE);
if (end != NFS_I(inode)->npages) {
if (end != inode->i_mapping->nrpages) {
rcu_read_lock();
end = page_cache_next_hole(mapping, idx + 1, ULONG_MAX);
rcu_read_unlock();