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ceph: pass inclusive lend parameter to filemap_write_and_wait_range() 

The 'lend' parameter of filemap_write_and_wait_range is required to be
inclusive, so follow the rule. Same for invalidate_inode_pages2_range.

Signed-off-by: zhengbin <zhengbin13@huawei.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
zhengbin 2019-02-01 11:19:15 +00:00 committed by Ilya Dryomov
parent 0c93e1b7a2
commit e450f4d1a5
1 changed files with 8 additions and 5 deletions
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13
fs/ceph/file.c
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@ -590,7 +590,8 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct iov_iter *to,
* but it will at least behave sensibly when they are
* in sequence.
*/
ret = filemap_write_and_wait_range(inode->i_mapping, off, off + len);
ret = filemap_write_and_wait_range(inode->i_mapping,
off, off + len - 1);
if (ret < 0)
return ret;
@ -929,14 +930,15 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
(write ? "write" : "read"), file, pos, (unsigned)count,
snapc, snapc->seq);
ret = filemap_write_and_wait_range(inode->i_mapping, pos, pos + count);
ret = filemap_write_and_wait_range(inode->i_mapping,
pos, pos + count - 1);
if (ret < 0)
return ret;
if (write) {
int ret2 = invalidate_inode_pages2_range(inode->i_mapping,
pos >> PAGE_SHIFT,
(pos + count) >> PAGE_SHIFT);
(pos + count - 1) >> PAGE_SHIFT);
if (ret2 < 0)
dout("invalidate_inode_pages2_range returned %d\n", ret2);
@ -1132,13 +1134,14 @@ ceph_sync_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos,
dout("sync_write on file %p %lld~%u snapc %p seq %lld\n",
file, pos, (unsigned)count, snapc, snapc->seq);
ret = filemap_write_and_wait_range(inode->i_mapping, pos, pos + count);
ret = filemap_write_and_wait_range(inode->i_mapping,
pos, pos + count - 1);
if (ret < 0)
return ret;
ret = invalidate_inode_pages2_range(inode->i_mapping,
pos >> PAGE_SHIFT,
(pos + count) >> PAGE_SHIFT);
(pos + count - 1) >> PAGE_SHIFT);
if (ret < 0)
dout("invalidate_inode_pages2_range returned %d\n", ret);