Re: Please apply this XFS patch on 4.4

[Greg KH <gregkh@linuxfoundation.org>]

On Fri, May 25, 2018 at 03:32:12PM +0900, Daniel Sangorrin wrote:
> Subject of the patch: xfs: remove racy hasattr check from attr ops
> Commit ID: 5a93790d4e2df73e30c965ec6e49be82fc3ccfce
> Why: It didn't pass LTP getxattr04 test, which is "a regression test for the race between getting an existing xattr and setting/removing a large xattr.  This bug leads to that getxattr() fails to get an existing xattr and returns ENOATTR in xfs filesystem."
> 
> LTP test getxattr04 was FAILing with this error message:
> 	tst_device.c:230: INFO: Using test device LTP_DEV='/dev/loop0'
> 	tst_mkfs.c:83: INFO: Formatting /dev/loop0 with xfs opts='' extra opts=''
> 	tst_test.c:982: INFO: Timeout per run is 0h 05m 00s
> 	getxattr04.c:72: FAIL: getxattr() failed to get an existing attribute
> 
> After patching 4.4.y and running the test again (on x86_64) it PASSes:
> 	tst_device.c:230: INFO: Using test device LTP_DEV='/dev/loop0'
> 	tst_mkfs.c:83: INFO: Formatting /dev/loop0 with xfs opts='' extra opts=''
> 	tst_test.c:982: INFO: Timeout per run is 0h 05m 00s
> 	getxattr04.c:82: PASS: getxattr() succeeded to get an existing attribute
> 
> What kernel version: 4.4.y (Note: 4.9.y already has it applied)

Now applied, thanks.

greg k-h