Skip to content

GitLab

Switch branch/tag
  1. 20 Mar, 2006 9 commits
  3. 18 Jan, 2006 1 commit
    • Alan Cox's avatar
      [PATCH] EDAC: atomic scrub operations · 715b49ef
      Alan Cox authored 
      
EDAC requires a way to scrub memory if an ECC error is found and the chipset
does not do the work automatically.  That means rewriting memory locations
atomically with respect to all CPUs _and_ bus masters.  That means we can't
use atomic_add(foo, 0) as it gets optimised for non-SMP

This adds a function to include/asm-foo/atomic.h for the platforms currently
supported which implements a scrub of a mapped block.

It also adjusts a few other files include order where atomic.h is included
before types.h as this now causes an error as atomic_scrub uses u32.
Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      715b49ef
  5. 08 Jan, 2006 1 commit
  7. 12 Dec, 2005 1 commit
  9. 28 Oct, 2005 1 commit
  11. 08 Oct, 2005 1 commit
  13. 29 Aug, 2005 2 commits
  15. 17 Aug, 2005 1 commit
  17. 18 Jul, 2005 1 commit
  19. 15 Jul, 2005 1 commit
  21. 13 Jul, 2005 1 commit
  23. 02 Jul, 2005 1 commit
    • David Woodhouse's avatar
      AUDIT: Stop waiting for backlog after audit_panic() happens · ac4cec44
      David Woodhouse authored 
      
We force a rate-limit on auditable events by making them wait for space 
on the backlog queue. However, if auditd really is AWOL then this could 
potentially bring the entire system to a halt, depending on the audit 
rules in effect.

Firstly, make sure the wait time is honoured correctly -- it's the 
maximum time the process should wait, rather than the time to wait 
_each_ time round the loop. We were getting re-woken _each_ time a 
packet was dequeued, and the timeout was being restarted each time.

Secondly, reset the wait time after audit_panic() is called. In general 
this will be reset to zero, to allow progress to be made. If the system
is configured to _actually_ panic on audit_panic() then that will 
already have happened; otherwise we know that audit records are being 
lost anyway. 

These two tunables can't be exposed via AUDIT_GET and AUDIT_SET because 
those aren't particularly well-designed. It probably should have been 
done by sysctls or sysfs anyway -- one for a later patch.
Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
      ac4cec44
  25. 24 Jun, 2005 2 commits
  27. 22 Jun, 2005 3 commits
  29. 21 Jun, 2005 1 commit
  31. 20 Jun, 2005 1 commit
  33. 19 Jun, 2005 1 commit
  35. 23 May, 2005 1 commit
  37. 21 May, 2005 1 commit
  39. 20 May, 2005 2 commits
  41. 19 May, 2005 3 commits
    • David Woodhouse's avatar
      AUDIT: Honour audit_backlog_limit again. · fb19b4c6
      David Woodhouse authored 
      
The limit on the number of outstanding audit messages was inadvertently
removed with the switch to queuing skbs directly for sending by a kernel
thread. Put it back again.
Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
      fb19b4c6
    • David Woodhouse's avatar
      AUDIT: Send netlink messages from a separate kernel thread · b7d11258
      David Woodhouse authored 
      
netlink_unicast() will attempt to reallocate and will free messages if
the socket's rcvbuf limit is reached unless we give it an infinite 
timeout. So do that, from a kernel thread which is dedicated to spewing
stuff up the netlink socket.
Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
      b7d11258
    • Steve Grubb's avatar
      AUDIT: Clean up logging of untrusted strings · 168b7173
      Steve Grubb authored 
      
* If vsnprintf returns -1, it will mess up the sk buffer space accounting. 
This is fixed by not calling skb_put with bogus len values.

* audit_log_hex was a loop that called audit_log_vformat with %02X for each 
character. This is very inefficient since conversion from unsigned character 
to Ascii representation is essentially masking, shifting, and byte lookups. 
Also, the length of the converted string is well known - it's twice the 
original. Fixed by rewriting the function.

* audit_log_untrustedstring had no comments. This makes it hard for 
someone to understand what the string format will be.

* audit_log_d_path was never fixed to use untrustedstring. This could mess
up user space parsers. This was fixed to make a temp buffer, call d_path, 
and log temp buffer using untrustedstring. 

From: Steve Grubb <sgrubb@redhat.com>
Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
      168b7173
  43. 18 May, 2005 1 commit
  45. 13 May, 2005 3 commits

Menu

Help