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-rw-r--r--fs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs.c b/fs.c
index a0634e4..4232f6a 100644
--- a/fs.c
+++ b/fs.c
@@ -322,12 +322,14 @@ iput(struct inode *ip)
acquire(&icache.lock);
if(ip->ref == 1 && (ip->flags & I_VALID) && ip->nlink == 0){
// inode has no links and no other references: truncate and free.
+ acquiresleep(&ip->lock);
release(&icache.lock);
itrunc(ip);
ip->type = 0;
iupdate(ip);
acquire(&icache.lock);
ip->flags = 0;
+ releasesleep(&ip->lock);
}
ip->ref--;
release(&icache.lock);