From: Jared Hulbert <jaredeh@gmail.com>
To: linux-fsdevel@vger.kernel.org, "Wilcox,
Matthew R" <matthew.r.wilcox@intel.com>,
"ross.zwisler@linux.intel.com" <ross.zwisler@linux.intel.com>
Subject: DAX: bug in COW no page fault?
Date: Fri, 29 Jan 2016 13:38:15 -0800 [thread overview]
Message-ID: <56ABDBC7.5030703@gmail.com> (raw)
Why isn't this required?
diff --git a/fs/dax.c b/fs/dax.c
index a7f77e1..30f2abe 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -416,6 +416,7 @@ int __dax_fault(struct vm_area_struct *vma, struct vm_fault
error = -EIO;
goto out;
}
+ i_mmap_unlock_read(mapping);
}
return VM_FAULT_LOCKED;
}
next reply other threads:[~2016-01-29 21:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-29 21:38 Jared Hulbert [this message]
2016-01-29 21:53 ` bug in COW no page fault? Wilcox, Matthew R
2016-01-29 22:12 ` Jared Hulbert
2016-01-29 22:36 ` Wilcox, Matthew R
2016-01-29 23:16 ` Jared Hulbert
2016-01-30 5:47 ` Wilcox, Matthew R
2016-01-30 6:34 ` Jared Hulbert
2016-02-01 21:12 ` Ross Zwisler
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