forked from luck/tmp_suning_uos_patched
fix bogus read_seqretry() checks introduced in b37199e
read_seqretry() returns true on mismatch, not on match... Cc: stable@vger.kernel.org # 3.15+ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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6f18493e54
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@ -1137,7 +1137,7 @@ static bool __follow_mount_rcu(struct nameidata *nd, struct path *path,
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*/
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*inode = path->dentry->d_inode;
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}
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return read_seqretry(&mount_lock, nd->m_seq) &&
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return !read_seqretry(&mount_lock, nd->m_seq) &&
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!(path->dentry->d_flags & DCACHE_NEED_AUTOMOUNT);
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}
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@ -1174,7 +1174,7 @@ static int follow_dotdot_rcu(struct nameidata *nd)
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nd->path.mnt = &mounted->mnt;
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nd->path.dentry = mounted->mnt.mnt_root;
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nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);
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if (!read_seqretry(&mount_lock, nd->m_seq))
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if (read_seqretry(&mount_lock, nd->m_seq))
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goto failed;
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}
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nd->inode = nd->path.dentry->d_inode;
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