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ceph: refactor readpage_nounlock() to make the logic clearer 

If the return value of ceph_osdc_readpages() is not negative,
it is certainly greater than or equal to zero.

Remove the useless condition judgment and redundant braces.

Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
This commit is contained in:
Zhang Zhen 2014-05-28 15:09:55 +08:00 committed by Yan, Zheng
parent ca665e0282
commit 23cd573b46
1 changed files with 7 additions and 10 deletions
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17
fs/ceph/addr.c
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@ -211,18 +211,15 @@ static int readpage_nounlock(struct file *filp, struct page *page)
SetPageError(page);
ceph_fscache_readpage_cancel(inode, page);
goto out;
} else {
if (err < PAGE_CACHE_SIZE) {
/* zero fill remainder of page */
zero_user_segment(page, err, PAGE_CACHE_SIZE);
} else {
flush_dcache_page(page);
}
}
SetPageUptodate(page);
if (err < PAGE_CACHE_SIZE)
/* zero fill remainder of page */
zero_user_segment(page, err, PAGE_CACHE_SIZE);
else
flush_dcache_page(page);
if (err >= 0)
ceph_readpage_to_fscache(inode, page);
SetPageUptodate(page);
ceph_readpage_to_fscache(inode, page);
out:
return err < 0 ? err : 0;