The following series implements bugfix of PTE formats for swap and file entries
and changes PTE bit position to fixed, which is more better for analysing of
tracer and HW debugger logs.
Hardcoded bits positions and offsets in PTE effectively causes a miss of
relationship between PTE format for TLB and PTE formats for swap and file
entries. This patch series introduces a symbolic relation between both and
also fixes a current mismatch of formats. It can crash kernel or application
in heavy paging environment.
Fixed bit positions helps much in analysing of tracer and HW debugger logs and
improves performance and code size a little due to absence of variable masks
in kernel.
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Leonid Yegoshin (3):
MIPS: rearrange PTE bits into fixed positions
MIPS: PTE bit positions slightly changed to prepare a more simple swap/file presentation
MIPS: bugfix of PTE formats for swap and file entries
arch/mips/include/asm/pgtable-32.h | 107 ++++++++-----------
arch/mips/include/asm/pgtable-64.h | 25 +++-
arch/mips/include/asm/pgtable-bits.h | 189 ++++++++++++++++++++++++++++++----
3 files changed, 232 insertions(+), 89 deletions(-)
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