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authorTomohiro Kusumi <[email protected]>2019-05-09 08:40:51 +0900
committerBrian Behlendorf <[email protected]>2019-05-08 16:40:51 -0700
commit97aa3ba44f0b3911866e5dfc31b0d7a9fb124855 (patch)
tree9cbdc28323eca6bb9835f261cafa79039c3fa6d2 /module/zfs/zfs_vnops.c
parente2dddb7e58f7046dc1bfdbc49db52f298fb7019f (diff)
Fix link count of root inode when snapdir is visible
Given how zfs_getattr() is implemented, zfs_getattr_fast() (used by ->getattr() of zpl inodes) also needs to consider an additional link count if "snapdir" property is set to "visible". Without this, # of directories in root inode of each dataset doesn't match the link count when snapdir is visible. Reviewed-by: Richard Yao <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Tomohiro Kusumi <[email protected]> Closes #8727
Diffstat (limited to 'module/zfs/zfs_vnops.c')
-rw-r--r--module/zfs/zfs_vnops.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/module/zfs/zfs_vnops.c b/module/zfs/zfs_vnops.c
index 27f179d82..41c1bd255 100644
--- a/module/zfs/zfs_vnops.c
+++ b/module/zfs/zfs_vnops.c
@@ -2657,6 +2657,12 @@ zfs_getattr_fast(struct inode *ip, struct kstat *sp)
mutex_enter(&zp->z_lock);
generic_fillattr(ip, sp);
+ /*
+ * +1 link count for root inode with visible '.zfs' directory.
+ */
+ if ((zp->z_id == zfsvfs->z_root) && zfs_show_ctldir(zp))
+ if (sp->nlink < ZFS_LINK_MAX)
+ sp->nlink++;
sa_object_size(zp->z_sa_hdl, &blksize, &nblocks);
sp->blksize = blksize;