From: Xiubo Li <xiubli@xxxxxxxxxx> In case of hitting the file EOF the ceph_read_iter() needs to retrieve the file size from MDS, and the Fr caps is not a neccessary. URL: https://patchwork.kernel.org/project/ceph-devel/list/?series=819323 Reported-by: Frank Hsiao 蕭法宣 <frankhsiao@xxxxxxxx> Signed-off-by: Xiubo Li <xiubli@xxxxxxxxxx> Tested-by: Frank Hsiao 蕭法宣 <frankhsiao@xxxxxxxx> --- fs/ceph/file.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index c35878427985..a85f95c941fc 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -2191,14 +2191,16 @@ static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to) int statret; struct page *page = NULL; loff_t i_size; + int mask = CEPH_STAT_CAP_SIZE; if (retry_op == READ_INLINE) { page = __page_cache_alloc(GFP_KERNEL); if (!page) return -ENOMEM; } - statret = __ceph_do_getattr(inode, page, - CEPH_STAT_CAP_INLINE_DATA, !!page); + if (retry_op == READ_INLINE) + mask = CEPH_STAT_CAP_INLINE_DATA; + statret = __ceph_do_getattr(inode, page, mask, !!page); if (statret < 0) { if (page) __free_page(page); @@ -2239,7 +2241,7 @@ static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to) /* hit EOF or hole? */ if (retry_op == CHECK_EOF && iocb->ki_pos < i_size && ret < len) { - doutc(cl, "hit hole, ppos %lld < size %lld, reading more\n", + doutc(cl, "may hit hole, ppos %lld < size %lld, reading more\n", iocb->ki_pos, i_size); read += ret; -- 2.43.0
