From 4b983ad104310d6e67d22e42b057085cc9122604 Mon Sep 17 00:00:00 2001 From: Li Dongyang Date: Thu, 8 Jan 2015 11:02:24 +1100 Subject: [PATCH] LU-6091 llite: glimpse the inode before doing fiemap For a new inode, the i_size is 0 until a stat, which will yield an empty fiemap result. Fix the issue by glimpsing the size before doing fiemap. Signed-off-by: Li Dongyang Change-Id: I072fd1f5e13c7fd127199a10b44366aed145b8e1 Reviewed-on: http://review.whamcloud.com/13280 Tested-by: Jenkins Reviewed-by: Bob Glossman Tested-by: Maloo Reviewed-by: Andreas Dilger Reviewed-by: Jinshan Xiong Reviewed-by: Oleg Drokin --- lustre/llite/file.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lustre/llite/file.c b/lustre/llite/file.c index e4bed5d..9dd6906 100644 --- a/lustre/llite/file.c +++ b/lustre/llite/file.c @@ -1794,6 +1794,12 @@ static int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap, fm_key.oa.o_oi = lsm->lsm_oi; fm_key.oa.o_valid = OBD_MD_FLID | OBD_MD_FLGROUP; + if (i_size_read(inode) == 0) { + rc = ll_glimpse_size(inode); + if (rc) + GOTO(out, rc); + } + obdo_from_inode(&fm_key.oa, inode, OBD_MD_FLSIZE); obdo_set_parent_fid(&fm_key.oa, &ll_i2info(inode)->lli_fid); /* If filesize is 0, then there would be no objects for mapping */ -- 1.8.3.1