linux-kernel - [PATCH 0/2] sys_write() should write all valid data

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Message-Id: <1242317939-15392-1-git-send-email-v.mayatskih@gmail.com>
Date:	Thu, 14 May 2009 18:18:59 +0200
From:	Vitaly Mayatskikh <v.mayatskih@...il.com>
To:	Josef Bacik <josef@...hat.com>
Cc:	sandeen@...hat.com, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] sys_write() should write all valid data

There's user-visible misbehavour in sys_write(): when user tries to put
down to disk some data, which crosses boundary of existing memory, sys_write()
either immediately returns with EFAULT or writes first page(s).

Next 2 patches make sys_write()'s behaviour more consistent: it tries now
to write down all what it can.

Vitaly Mayatskikh (2):
  Introduce check_readable_bytes()
  Perform checks in iov_iter_fault_in_readable() with
    check_readable_bytes()

 fs/fuse/file.c          |    6 ++++--
 include/linux/pagemap.h |   35 +++++++++++++++++++++++++++++++++++
 mm/filemap.c            |   13 +++++++++----
 3 files changed, 48 insertions(+), 6 deletions(-)

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