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NFSv4: Fix an rcu lock leak

Browse source 
The intention in the original patch was to release the lock when
we put the inode, however something got screwed up.

Reported-by: Jason Yan <[email protected]>
Fixes: 7b410d9ce4 ("pNFS: Delay getting the layout header in..")
Cc: [email protected] # v4.10+
Signed-off-by: Trond Myklebust <[email protected]>
This commit is contained in:
Trond Myklebust 2017-05-05 13:02:42 -04:00
commit 2e84611b3f
1 changed files with 4 additions and 2 deletions
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6
fs/nfs/callback_proc.c
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@ -131,10 +131,11 @@ restart:
if (!inode)
continue;
if (!nfs_sb_active(inode->i_sb)) {
rcu_read_lock();
rcu_read_unlock();
spin_unlock(&clp->cl_lock);
iput(inode);
spin_lock(&clp->cl_lock);
rcu_read_lock();
goto restart;
}
return inode;
@ -170,10 +171,11 @@ restart:
if (!inode)
continue;
if (!nfs_sb_active(inode->i_sb)) {
rcu_read_lock();
rcu_read_unlock();
spin_unlock(&clp->cl_lock);
iput(inode);
spin_lock(&clp->cl_lock);
rcu_read_lock();
goto restart;
}
return inode;