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  1. 12 Jun, 2006 13 commits
    • Sergey Vlasov's avatar
      [PATCH] tmpfs: Decrement i_nlink correctly in shmem_rmdir() · 86bc843a
      Sergey Vlasov authored 
      shmem_rmdir() must undo the increment of i_nlink done in
shmem_get_inode() for directories, otherwise at least
IN_DELETE_SELF inotify event generation is broken.
Signed-off-by: default avatarSergey Vlasov <vsu@altlinux.ru>
Signed-off-by: default avatarHugh Dickins <hugh@veritas.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      86bc843a
    • Robin H. Johnson's avatar
      [PATCH] tmpfs: time granularity fix for [acm]time going backwards · cfd95a9c
      Robin H. Johnson authored 
      I noticed a strange behavior in a tmpfs file system the other day, while
building packages - occasionally, and seemingly at random, make decided to
rebuild a target. However, only on tmpfs.

A file would be created, and if checked, it had a sub-second timestamp.
However, after an utimes related call where sub-seconds should be set, they
were zeroed instead. In the case that a file was created, and utimes(...,NULL)
was used on it in the same second, the timestamp on the file moved backwards.

After some digging, I found that this was being caused by tmpfs not having a
time granularity set, thus inheriting the default 1 second granularity.

Hugh adds: yes, we missed tmpfs when the s_time_gran mods went into 2.6.11.
Unfortunately, the granularity of CURRENT_TIME, often used in filesystems,
does not match the default granularity set by alloc_super.  A few more such
discrepancies have been found, but this is the most important to fix now.
Signed-off-by: default avatarRobin H. Johnson <robbat2@gentoo.org>
Acked-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarHugh Dickins <hugh@veritas.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      cfd95a9c
    • Linus Torvalds's avatar
      Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 · 5f856e8b
      Linus Torvalds authored 
      * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Do not double-export sys_close() when CONFIG_SOLARIS_EMUL_MODULE
      5f856e8b
    • Linus Torvalds's avatar
      Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 · a3b5960e
      Linus Torvalds authored 
      * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [IPV4]: Increment ipInHdrErrors when TTL expires.
  [TCP]: continued: reno sacked_out count fix
  [DCCP] Ackvec: fix soft lockup in ackvec handling code
      a3b5960e
    • Linus Torvalds's avatar
      Merge master.kernel.org:/home/rmk/linux-2.6-arm · 37b0d1de
      Linus Torvalds authored 
      * master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] Fix Integrator and Versatile interrupt initialisation
  [ARM] 3546/1: PATCH: subtle lost interrupts bug on i.MX
  [ARM] 3547/1: PXA-OHCI: Allow platforms to specify a power budget
  [ARM] Fix Neponset IRQ handling
      37b0d1de
    • Weidong's avatar
      [IPV4]: Increment ipInHdrErrors when TTL expires. · 42d1d52e
      Weidong authored 
      Signed-off-by: default avatarWeidong <weid@nanjing-fnst.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      42d1d52e
    • Linus Torvalds's avatar
      [sky2] Fix sky2 network driver suspend/resume · d374c1c1
      Linus Torvalds authored 
      This fixes two independent problems: it would not save the PCI state on
suspend (and thus try to resume a nonexistent state on resume), and
while shut off, if an interrupt happened on the same shared irq, the irq
handler would react very badly to the interrupt status being an invalid
all-ones state.
Acked-by: default avatarJeff Garzik <jgarzik@pobox.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      d374c1c1
    • Linus Torvalds's avatar
      Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev · 0e838b72
      Linus Torvalds authored 
      * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [PATCH] sata_mv: grab host lock inside eng_timeout
      0e838b72
    • Aki M Nyrhinen's avatar
      [TCP]: continued: reno sacked_out count fix · 79320d7e
      Aki M Nyrhinen authored 
      From: Aki M Nyrhinen <anyrhine@cs.helsinki.fi>

IMHO the current fix to the problem (in_flight underflow in reno)
is incorrect.  it treats the symptons but ignores the problem. the
problem is timing out packets other than the head packet when we
don't have sack. i try to explain (sorry if explaining the obvious).

with sack, scanning the retransmit queue for timed out packets is
fine because we know which packets in our retransmit queue have been
acked by the receiver.

without sack, we know only how many packets in our retransmit queue the
receiver has acknowledged, but no idea which packets.

think of a "typical" slow-start overshoot case, where for example
every third packet in a window get lost because a router buffer gets
full.

with sack, we check for timeouts on those every third packet (as the
rest have been sacked). the packet counting works out and if there
is no reordering, we'll retransmit exactly the packets that were 
lost.

without sack, however, we check for timeout on every packet and end up
retransmitting consecutive packets in the retransmit queue. in our
slow-start example, 2/3 of those retransmissions are unnecessary. these
unnecessary retransmissions eat the congestion window and evetually
prevent fast recovery from continuing, if enough packets were lost.
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      79320d7e
    • Andrea Bittau's avatar
      [DCCP] Ackvec: fix soft lockup in ackvec handling code · afec35e3
      Andrea Bittau authored 
      A soft lockup existed in the handling of ack vector records.
Specifically, when a tail of the list of ack vector records was
removed, it was possible to end up iterating infinitely on an element
of the tail.
Signed-off-by: default avatarAndrea Bittau <a.bittau@cs.ucl.ac.uk>
Signed-off-by: default avatarIan McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      afec35e3
    • David S. Miller's avatar
      [SPARC64]: Do not double-export sys_close() when CONFIG_SOLARIS_EMUL_MODULE · ccefb5f3
      David S. Miller authored 
      It is already exported by fs/open.c

Noticed by Ben Collins.
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ccefb5f3
    • Paul Mackerras's avatar
      [PATCH] Fix for the PPTP hangs that have been reported · 289a1e99
      Paul Mackerras authored 
      People have been reporting that PPP connections over ptys, such as
used with PPTP, will hang randomly when transferring large amounts of
data, for instance in http://bugzilla.kernel.org/show_bug.cgi?id=6530.
I have managed to reproduce the problem, and the patch below fixes the
actual cause.

The problem is not in fact in ppp_async.c but in n_tty.c.  What
happens is that when pptp reads from the pty, we call read_chan() in
drivers/char/n_tty.c on the master side of the pty.  That copies all
the characters out of its buffer to userspace and then calls
check_unthrottle(), which calls the pty unthrottle routine, which
calls tty_wakeup on the slave side, which calls ppp_asynctty_wakeup,
which calls tasklet_schedule.  So far so good.  Since we are in
process context, the tasklet runs immediately and calls
ppp_async_process(), which calls ppp_async_push, which calls the
tty->driver->write function to send some more output.

However, tty->driver->write() returns zero, because the master
tty->receive_room is still zero.  We haven't returned from
check_unthrottle() yet, and read_chan() only updates tty->receive_room
_after_ calling check_unthrottle.  That means that the driver->write
call in ppp_async_process() returns 0.  That would be fine if we were
going to get a subsequent wakeup call, but we aren't (we just had it,
and the buffer is now empty).

The solution is for n_tty.c to update tty->receive_room _before_
calling the driver unthrottle routine.  The patch below does this.
With this patch I was able to transfer a 900MB file over a PPTP
connection (taking about 25 minutes), whereas without the patch the
connection would always stall in under a minute.
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      289a1e99
    • Mark Lord's avatar
      [PATCH] sata_mv: grab host lock inside eng_timeout · 2f9719b6
      Mark Lord authored 
      Bug fix:  mv_eng_timeout() calls mv_err_intr() without first grabbing the host lock,
which can lead to all sorts of interesting scenarios.

This whole error-handling portion of sata_mv is nasty (and will get fixed for
the new EH stuff), but for now this patch will help keep it on life-support.
Signed-off-by: default avatarMark Lord <liml@rtr.ca>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      2f9719b6
  3. 11 Jun, 2006 8 commits
  5. 10 Jun, 2006 9 commits
  7. 09 Jun, 2006 5 commits
  9. 08 Jun, 2006 5 commits