mirror of https://gitee.com/openkylin/linux.git
a2a64769d0
current->blocked will be set to the value of current->thread_info->flags if the cmpxchg to update thread_info->flags fails. For performance reasons the store into current->blocked was placed in the cmpxchg loop. However, the cmpxchg overwrites the register holding the value to be stored. In the rare case of a retry the value of thread_info->flags will be written into current->blocked. The fix is to use another register so that the register containing the current->blocked value is not overwritten. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com> |
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| mm | ||
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| sn | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||
| defconfig | ||
| install.sh | ||
| module.lds | ||