From: Andreas Gruenbacher <agruenba@redhat.com>
Date: Sun, 4 Dec 2022 11:51:55 +0000 (+0100)
Subject: gfs2: Add gfs2_inode_lookup comment
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=2ec750a01d189cf1872cd79490d0911a7bd519f8;p=users%2Fjedix%2Flinux-maple.git

gfs2: Add gfs2_inode_lookup comment

Add comment on when and why gfs2_cancel_delete_work() needs to be
skipped in gfs2_inode_lookup().

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
---

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 9fbbc365a404..8d4c4b5c4c0d 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -142,6 +142,11 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type,
 		if (unlikely(error))
 			goto fail;
 
+		/*
+		 * The only caller that sets @blktype to GFS2_BLKST_UNLINKED is
+		 * delete_work_func().  Make sure not to cancel the delete work
+		 * from within itself here.
+		 */
 		if (blktype == GFS2_BLKST_UNLINKED)
 			extra_flags |= LM_FLAG_TRY;
 		else