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[dino99 <25031@xxxxxxxxxxxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/25031

Title:
  CIFS mount does not update file size for opened (for read) files

Status in linux package in Ubuntu:
  Invalid

Bug description:
  Hi,

  I encountered this bug with cifs under Ubuntu 5.10: if I mount a filesystem
  using cifs and then modify a file on the server machine, the client side does
  not update the filesize (or access time) for any opened file (for reading).
  Here is a scenario (server is the machine providing the cifs share, client and
  client1 are two terminals on the client machine which mounts the share):

  server> ls -al test
  -rw-------   1 user     user        1780 Nov  4 16:09 test

  client> mount //server/share /mnt/test -t cifs -o username=user
  client> ls -al test
  -rw-------  1 radu user 1780 2005-11-04 16:09 test

  client1> tail -f test

  server> echo "1234567890" >> mail/test
  server> ls -al mail/test
  -rw-------   1 radu     user        1791 Nov  4 16:14 mail/test

  client> ls -al test
  -rw-------  1 radu user 1780 2005-11-04 16:09 test

  As you can see, the filesize and access time are not updated for client, and
  nothing shows up in the second terminal client1 (which runs tail -f test).
  If ther test file is not opened (with tail -f or other program), the size and
  time are updated fine. The size and time are also updated fine if the share is
  mounted as smbfs, regardless if the file is opened for reading or not.
  So, this is a problem of cifs only.

  Thanks,

  --
  Radu

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