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Chuck Lever 35c448a8a3 include/net/sock.h: squelch compiler warning in sk_rmem_schedule() 
This warning:

  In file included from linux/include/linux/tcp.h:227:0,
                   from linux/include/linux/ipv6.h:221,
                   from linux/include/net/ipv6.h:16,
                   from linux/include/linux/sunrpc/clnt.h:26,
                   from linux/net/sunrpc/stats.c:22:
  linux/include/net/sock.h: In function `sk_rmem_schedule':
  linux/nfs-2.6/include/net/sock.h:1339:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

is seen with gcc (GCC) 4.6.3 20120306 (Red Hat 4.6.3-2) using the
-Wextra option.

Commit c76562b670 ("netvm: prevent a stream-specific deadlock")
accidentally replaced the "size" parameter of sk_rmem_schedule() with an
unsigned int.  This changes the semantics of the comparison in the
return statement.

In sk_wmem_schedule we have syntactically the same comparison, but
"size" is a signed integer.  In addition, __sk_mem_schedule() takes a
signed integer for its "size" parameter, so there is an implicit type
conversion in sk_rmem_schedule() anyway.

Revert the "size" parameter back to a signed integer so that the
semantics of the expressions in both sk_[rw]mem_schedule() are exactly
the same.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: David Miller <davem@davemloft.net>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-17 15:00:38 -07:00
..
acpi Merge branches 'delete-gts-bfs', 'misc', 'novell-bugzilla-757888-numa' and 'osc-pcie' into base 2012-08-03 00:31:23 -04:00
asm-generic mutex: Place lock in contended state after fastpath_lock failure 2012-08-13 18:46:54 +02:00
crypto
drm drm: Drop the NV12M and YUV420M formats 2012-09-13 12:38:10 +09:00
keys
linux mm/ia64: fix a memory block size bug 2012-09-17 15:00:37 -07:00
math-emu
media [media] v4l2: add core support for the new VIDIOC_ENUM_FREQ_BANDS ioctl 2012-07-30 20:23:05 -03:00
memory
misc
mtd
net include/net/sock.h: squelch compiler warning in sk_rmem_schedule() 2012-09-17 15:00:38 -07:00
pcmcia
ras
rdma
rxrpc
scsi
sound ASoC: Additional updates for 3.6 2012-08-20 21:26:04 +02:00
target target: support zero allocation length in REQUEST SENSE 2012-09-07 11:14:21 -07:00
trace Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-08-03 10:57:20 -07:00
video video: da8xx-fb: configure FIFO threshold to reduce underflow errors 2012-07-29 01:11:09 +00:00
xen Revert "xen PVonHVM: move shared_info to MMIO before kexec" 2012-08-16 13:05:25 -04:00
Kbuild