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0840aea98c
To facilitate locked page counting, the user SDMA routines would maintain a list of io vectors, which were freed in the completion callback and then unpin the associated pages during the next call into the kernel. Since the size of this list was unbounded, doing this was bad for performance because the driver ended up spending too much time freeing the io vectors. This commit changes how the io vector freeing is done by moving the actual page unpinning in the callback and maintaining a count of unpinned pages. This count can then be used during the next call into the kernel to update the mm->pinned_vm variable (since that requires process context and the ability to sleep.) Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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| android | ||
| board | ||
| clocking-wizard | ||
| comedi | ||
| dgap | ||
| dgnc | ||
| emxx_udc | ||
| fbtft | ||
| fsl-mc | ||
| fwserial | ||
| gdm72xx | ||
| gdm724x | ||
| goldfish | ||
| gs_fpgaboot | ||
| iio | ||
| lustre | ||
| media | ||
| most | ||
| mt29f_spinand | ||
| netlogic | ||
| nvec | ||
| octeon | ||
| octeon-usb | ||
| olpc_dcon | ||
| panel | ||
| rdma | ||
| rtl8188eu | ||
| rtl8192e | ||
| rtl8192u | ||
| rtl8712 | ||
| rtl8723au | ||
| rts5208 | ||
| skein | ||
| slicoss | ||
| sm750fb | ||
| speakup | ||
| ste_rmi4 | ||
| unisys | ||
| vme | ||
| vt6655 | ||
| vt6656 | ||
| wilc1000 | ||
| wlan-ng | ||
| xgifb | ||
| Kconfig | ||
| Makefile | ||
| staging.c | ||