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Benjamin Coddington 4b09ec4b14 nfs: Don't take a reference on fl->fl_file for LOCK operation
I have reports of a crash that look like __fput() was called twice for
a NFSv4.0 file.  It seems possible that the state manager could try to
reclaim a lock and take a reference on the fl->fl_file at the same time the
file is being released if, during the close(), a signal interrupts the wait
for outstanding IO while removing locks which then skips the removal
of that lock.

Since 83bfff23e9 ("nfs4: have do_vfs_lock take an inode pointer") has
removed the need to traverse fl->fl_file->f_inode in nfs4_lock_done(),
taking that reference is no longer necessary.

Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2017-01-12 12:51:29 -05:00
arch KVM fixes for v4.10-rc3 2017-01-06 15:27:17 -08:00
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Documentation VFIO fixes for v4.10-rc3 2017-01-06 11:19:03 -08:00
drivers USB fixes for 4.10-rc3 2017-01-08 11:42:04 -08:00
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fs nfs: Don't take a reference on fl->fl_file for LOCK operation 2017-01-12 12:51:29 -05:00
include USB fixes for 4.10-rc3 2017-01-08 11:42:04 -08:00
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kernel Merge branch 'stable-4.10' of git://git.infradead.org/users/pcmoore/audit 2017-01-05 23:06:06 -08:00
lib mm: workingset: fix use-after-free in shadow node shrinker 2017-01-07 18:22:40 -08:00
mm mm: workingset: fix use-after-free in shadow node shrinker 2017-01-07 18:22:40 -08:00
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MAINTAINERS Char/Misc fixes for 4.10-rc3 2017-01-08 11:37:44 -08:00
Makefile Linux 4.10-rc3 2017-01-08 14:18:17 -08:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.