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ceph: avoid updating directory inode's i_size accidentally

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Directory inode's i_size is used by readdir cache.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
This commit is contained in:
Yan, Zheng 2016-02-26 17:16:32 +08:00 committed by Ilya Dryomov
parent af5e5eb574
commit a3d714c336
1 changed files with 4 additions and 0 deletions
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4
fs/ceph/inode.c
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@ -549,6 +549,10 @@ int ceph_fill_file_size(struct inode *inode, int issued,
if (ceph_seq_cmp(truncate_seq, ci->i_truncate_seq) > 0 ||
(truncate_seq == ci->i_truncate_seq && size > inode->i_size)) {
dout("size %lld -> %llu\n", inode->i_size, size);
if (size > 0 && S_ISDIR(inode->i_mode)) {
pr_err("fill_file_size non-zero size for directory\n");
size = 0;
}
i_size_write(inode, size);
inode->i_blocks = (size + (1<<9) - 1) >> 9;
ci->i_reported_size = size;