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[Bug 1247773] Re: Fanotify blocks any write operation to CIFS mounted volumes for about 10-15 secs

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Quinn Balazs <qtbalazs@xxxxxxxxx>
Date: Mon, 04 Nov 2013 16:50:23 -0000
Reply-to: Bug 1247773 <1247773@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Please use "apport-collect 1247773" to fetch all relevant files.

** Package changed: ubuntu => linux (Ubuntu)

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1247773

Title:
  Fanotify blocks any write operation to CIFS mounted volumes for about
  10-15 secs

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Whenever we use Fanotify to monitor "CIFS" mounted volumes and
  try to write to a new file by doing:

  echo "ABC" > /mnt/cifs/test.c

  It takes around 10-15 secs to complete the write operation.

  This happens only when we try to monitor "FAN_OPEN_PERM". Looks like
  "FAN_OPEN_PERM" blocks and notifies only after 10-15 secs.

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