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01d69a82e1
linux/arch/ia64
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Tony Luck 01d69a82e1 [IA64] Fix 64-bit atomic routines to return "long" 
These have been broken (returning "int") since the dawn of
time. But there were no users that needed the whole value
until commit
 424acaaeb3
 rwsem: wake queued readers when writer blocks on active read lock

made this change:

-           (rwsem_atomic_update(0, sem) & RWSEM_ACTIVE_MASK))
-               /* Someone grabbed the sem already */
+           rwsem_atomic_update(0, sem) < RWSEM_WAITING_BIAS)
+               /* Someone grabbed the sem for write already */

RWSEM_ACTIVE_MASK is 0xffffffffL, so the old code only looked
at the low order 32-bits. The new code needs to see all 64 bits.

Signed-off-by: Tony Luck <tony.luck@intel.com>
2010-08-13 16:41:07 -07:00
..
configs [IA64] Put ia64 config files on the Uwe Kleine-König diet 2010-07-13 11:42:54 -07:00
dig x86, ia64: convert to use generic dma_map_ops struct 2009-01-06 14:06:57 +01:00
hp [IA64] arch/ia64/hp/common/sba_iommu.c: Rename dev_info to adi 2010-05-18 14:45:53 -07:00
include/asm [IA64] Fix 64-bit atomic routines to return "long" 2010-08-13 16:41:07 -07:00
kernel Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-08-11 09:23:32 -07:00
kvm Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-08-04 15:31:02 -07:00
lib [IA64] fix csum_ipv6_magic() 2009-09-02 09:14:48 -07:00
mm [IA64] Fix spinaphore down_spin() 2010-06-30 10:46:16 -07:00
oprofile [IA64] implement ticket locks for Itanium 2009-09-25 08:42:16 -07:00
pci ACPI: pci_root: pass acpi_pci_root to arch-specific scan 2010-04-04 00:29:53 -04:00
scripts scripts: change scripts to use system python instead of env 2010-02-02 14:33:56 +01:00
sn Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2010-08-06 11:44:36 -07:00
uv [IA64] wrong attribute of HUB chip written in uv_setup() 2010-02-26 11:20:41 -08:00
xen Merge branch 'for-35' of git://repo.or.cz/linux-kbuild 2010-06-01 08:55:52 -07:00
install.sh kbuild: use INSTALLKERNEL to select customized installkernel script 2009-09-20 12:18:14 +02:00
Kconfig topology: alternate fix for ia64 tiger_defconfig build breakage 2010-08-09 20:44:57 -07:00
Kconfig.debug
Makefile Merge commit 'v2.6.35' into kbuild/kbuild 2010-08-04 13:59:13 +02:00
module.lds