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(parent: 616867f) | patch
pNFS: Fix potential corruption of page being written
authorKazuo Ito <ito_kazuo_g3@lab.ntt.co.jp>
Thu, 14 Feb 2019 09:36:58 +0000 (18:36 +0900)
committerTrond Myklebust <trond.myklebust@hammerspace.com>
Wed, 20 Feb 2019 22:33:55 +0000 (17:33 -0500)
commitacdd366fd28c9c0f2b3fdf97ea65cf951071145f
tree85286f5e9682492ed23368211ee078b17c40fac5tree | snapshot
parent616867f95410771cb70baa1b8b3746f7c1d3bececommit | diff
pNFS: Fix potential corruption of page being written

nfs_want_read_modify_write() didn't check for !PagePrivate when pNFS
block or SCSI layout was in use, therefore we could lose data forever
if the page being written was filled by a read before completion.

Signed-off-by: Kazuo Ito <ito_kazuo_g3@lab.ntt.co.jp>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
fs/nfs/file.c diff | blob | history
Linux Kernel Source Tree.