From eebd2e813f7ef688e22cd0b68aea78fb3d1ef19c Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher Date: Tue, 1 Aug 2017 11:33:17 -0500 Subject: gfs2: Get rid of gfs2_set_nlink Remove gfs2_set_nlink which prevents the link count of an inode from becoming non-zero once it has reached zero. The next commit reduces the amount of waiting on glocks when an inode is evicted from memory. With that, an inode can become reallocated before all the remote-unlink callbacks from a previous delete are processed, which causes the link count to change from zero to non-zero. Signed-off-by: Andreas Gruenbacher Signed-off-by: Bob Peterson --- fs/gfs2/glops.c | 28 +--------------------------- 1 file changed, 1 insertion(+), 27 deletions(-) diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index 28c203a..dac6559 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -329,32 +329,6 @@ static int inode_go_demote_ok(const struct gfs2_glock *gl) return 1; } -/** - * gfs2_set_nlink - Set the inode's link count based on on-disk info - * @inode: The inode in question - * @nlink: The link count - * - * If the link count has hit zero, it must never be raised, whatever the - * on-disk inode might say. When new struct inodes are created the link - * count is set to 1, so that we can safely use this test even when reading - * in on disk information for the first time. - */ - -static void gfs2_set_nlink(struct inode *inode, u32 nlink) -{ - /* - * We will need to review setting the nlink count here in the - * light of the forthcoming ro bind mount work. This is a reminder - * to do that. - */ - if ((inode->i_nlink != nlink) && (inode->i_nlink != 0)) { - if (nlink == 0) - clear_nlink(inode); - else - set_nlink(inode, nlink); - } -} - static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf) { const struct gfs2_dinode *str = buf; @@ -376,7 +350,7 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf) i_uid_write(&ip->i_inode, be32_to_cpu(str->di_uid)); i_gid_write(&ip->i_inode, be32_to_cpu(str->di_gid)); - gfs2_set_nlink(&ip->i_inode, be32_to_cpu(str->di_nlink)); + set_nlink(&ip->i_inode, be32_to_cpu(str->di_nlink)); i_size_write(&ip->i_inode, be64_to_cpu(str->di_size)); gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks)); atime.tv_sec = be64_to_cpu(str->di_atime); -- cgit v1.1