Michel Lespinasse
d8ed45c5dc
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
...
This change converts the existing mmap_sem rwsem calls to use the new mmap
locking API instead.
The change is generated using coccinelle with the following rule:
// spatch --sp-file mmap_lock_api.cocci --in-place --include-headers --dir .
@@
expression mm;
@@
(
-init_rwsem
+mmap_init_lock
|
-down_write
+mmap_write_lock
|
-down_write_killable
+mmap_write_lock_killable
|
-down_write_trylock
+mmap_write_trylock
|
-up_write
+mmap_write_unlock
|
-downgrade_write
+mmap_write_downgrade
|
-down_read
+mmap_read_lock
|
-down_read_killable
+mmap_read_lock_killable
|
-down_read_trylock
+mmap_read_trylock
|
-up_read
+mmap_read_unlock
)
-(&mm->mmap_sem)
+(mm)
Signed-off-by: Michel Lespinasse <walken@google.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com >
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com >
Reviewed-by: Vlastimil Babka <vbabka@suse.cz >
Cc: Davidlohr Bueso <dbueso@suse.de >
Cc: David Rientjes <rientjes@google.com >
Cc: Hugh Dickins <hughd@google.com >
Cc: Jason Gunthorpe <jgg@ziepe.ca >
Cc: Jerome Glisse <jglisse@redhat.com >
Cc: John Hubbard <jhubbard@nvidia.com >
Cc: Liam Howlett <Liam.Howlett@oracle.com >
Cc: Matthew Wilcox <willy@infradead.org >
Cc: Peter Zijlstra <peterz@infradead.org >
Cc: Ying Han <yinghan@google.com >
Link: http://lkml.kernel.org/r/20200520052908.204642-5-walken@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2020-06-09 09:39:14 -07:00
Mike Rapoport
e31cf2f4ca
mm: don't include asm/pgtable.h if linux/mm.h is already included
...
Patch series "mm: consolidate definitions of page table accessors", v2.
The low level page table accessors (pXY_index(), pXY_offset()) are
duplicated across all architectures and sometimes more than once. For
instance, we have 31 definition of pgd_offset() for 25 supported
architectures.
Most of these definitions are actually identical and typically it boils
down to, e.g.
static inline unsigned long pmd_index(unsigned long address)
{
return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1);
}
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
{
return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address);
}
These definitions can be shared among 90% of the arches provided
XYZ_SHIFT, PTRS_PER_XYZ and xyz_page_vaddr() are defined.
For architectures that really need a custom version there is always
possibility to override the generic version with the usual ifdefs magic.
These patches introduce include/linux/pgtable.h that replaces
include/asm-generic/pgtable.h and add the definitions of the page table
accessors to the new header.
This patch (of 12):
The linux/mm.h header includes <asm/pgtable.h> to allow inlining of the
functions involving page table manipulations, e.g. pte_alloc() and
pmd_alloc(). So, there is no point to explicitly include <asm/pgtable.h>
in the files that include <linux/mm.h>.
The include statements in such cases are remove with a simple loop:
for f in $(git grep -l "include <linux/mm.h>") ; do
sed -i -e '/include <asm\/pgtable.h>/ d' $f
done
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Cc: Arnd Bergmann <arnd@arndb.de >
Cc: Borislav Petkov <bp@alien8.de >
Cc: Brian Cain <bcain@codeaurora.org >
Cc: Catalin Marinas <catalin.marinas@arm.com >
Cc: Chris Zankel <chris@zankel.net >
Cc: "David S. Miller" <davem@davemloft.net >
Cc: Geert Uytterhoeven <geert@linux-m68k.org >
Cc: Greentime Hu <green.hu@gmail.com >
Cc: Greg Ungerer <gerg@linux-m68k.org >
Cc: Guan Xuetao <gxt@pku.edu.cn >
Cc: Guo Ren <guoren@kernel.org >
Cc: Heiko Carstens <heiko.carstens@de.ibm.com >
Cc: Helge Deller <deller@gmx.de >
Cc: Ingo Molnar <mingo@redhat.com >
Cc: Ley Foon Tan <ley.foon.tan@intel.com >
Cc: Mark Salter <msalter@redhat.com >
Cc: Matthew Wilcox <willy@infradead.org >
Cc: Matt Turner <mattst88@gmail.com >
Cc: Max Filippov <jcmvbkbc@gmail.com >
Cc: Michael Ellerman <mpe@ellerman.id.au >
Cc: Michal Simek <monstr@monstr.eu >
Cc: Mike Rapoport <rppt@kernel.org >
Cc: Nick Hu <nickhu@andestech.com >
Cc: Paul Walmsley <paul.walmsley@sifive.com >
Cc: Richard Weinberger <richard@nod.at >
Cc: Rich Felker <dalias@libc.org >
Cc: Russell King <linux@armlinux.org.uk >
Cc: Stafford Horne <shorne@gmail.com >
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de >
Cc: Thomas Gleixner <tglx@linutronix.de >
Cc: Tony Luck <tony.luck@intel.com >
Cc: Vincent Chen <deanbo422@gmail.com >
Cc: Vineet Gupta <vgupta@synopsys.com >
Cc: Will Deacon <will@kernel.org >
Cc: Yoshinori Sato <ysato@users.sourceforge.jp >
Link: http://lkml.kernel.org/r/20200514170327.31389-1-rppt@kernel.org
Link: http://lkml.kernel.org/r/20200514170327.31389-2-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2020-06-09 09:39:13 -07:00
Mike Rapoport
fa3354e4ea
mm: free_area_init: use maximal zone PFNs rather than zone sizes
...
Currently, architectures that use free_area_init() to initialize memory
map and node and zone structures need to calculate zone and hole sizes.
We can use free_area_init_nodes() instead and let it detect the zone
boundaries while the architectures will only have to supply the possible
limits for the zones.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Tested-by: Hoan Tran <hoan@os.amperecomputing.com > [arm64]
Reviewed-by: Baoquan He <bhe@redhat.com >
Cc: Brian Cain <bcain@codeaurora.org >
Cc: Catalin Marinas <catalin.marinas@arm.com >
Cc: "David S. Miller" <davem@davemloft.net >
Cc: Geert Uytterhoeven <geert@linux-m68k.org >
Cc: Greentime Hu <green.hu@gmail.com >
Cc: Greg Ungerer <gerg@linux-m68k.org >
Cc: Guan Xuetao <gxt@pku.edu.cn >
Cc: Guo Ren <guoren@kernel.org >
Cc: Heiko Carstens <heiko.carstens@de.ibm.com >
Cc: Helge Deller <deller@gmx.de >
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com >
Cc: Jonathan Corbet <corbet@lwn.net >
Cc: Ley Foon Tan <ley.foon.tan@intel.com >
Cc: Mark Salter <msalter@redhat.com >
Cc: Matt Turner <mattst88@gmail.com >
Cc: Max Filippov <jcmvbkbc@gmail.com >
Cc: Michael Ellerman <mpe@ellerman.id.au >
Cc: Michal Hocko <mhocko@kernel.org >
Cc: Michal Simek <monstr@monstr.eu >
Cc: Nick Hu <nickhu@andestech.com >
Cc: Paul Walmsley <paul.walmsley@sifive.com >
Cc: Richard Weinberger <richard@nod.at >
Cc: Rich Felker <dalias@libc.org >
Cc: Russell King <linux@armlinux.org.uk >
Cc: Stafford Horne <shorne@gmail.com >
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de >
Cc: Tony Luck <tony.luck@intel.com >
Cc: Vineet Gupta <vgupta@synopsys.com >
Cc: Yoshinori Sato <ysato@users.sourceforge.jp >
Link: http://lkml.kernel.org/r/20200412194859.12663-5-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2020-06-03 20:09:43 -07:00
Mike Rapoport
997aef68af
init: provide a generic free_initmem implementation
...
Patch series "provide a generic free_initmem implementation", v2.
Many architectures implement free_initmem() in exactly the same or very
similar way: they wrap the call to free_initmem_default() with sometimes
different 'poison' parameter.
These patches switch those architectures to use a generic implementation
that does free_initmem_default(POISON_FREE_INITMEM).
This was inspired by Christoph's patches for free_initrd_mem [1] and I
shamelessly copied changelog entries from his patches :)
[1] https://lore.kernel.org/lkml/20190213174621.29297-1-hch@lst.de/
This patch (of 2):
For most architectures free_initmem just a wrapper for the same
free_initmem_default(-1) call. Provide that as a generic implementation
marked __weak.
Link: http://lkml.kernel.org/r/1550515285-17446-2-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com >
Reviewed-by: Andrew Morton <akpm@linux-foundation.org >
Cc: Christoph Hellwig <hch@lst.de >
Cc: Palmer Dabbelt <palmer@sifive.com >
Cc: Richard Kuo <rkuo@codeaurora.org >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2019-05-14 09:47:47 -07:00
Christoph Hellwig
4afd58e14d
initramfs: provide a generic free_initrd_mem implementation
...
For most architectures free_initrd_mem just expands to the same
free_reserved_area call. Provide that as a generic implementation marked
__weak.
Link: http://lkml.kernel.org/r/20190213174621.29297-8-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de >
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org > [m68k]
Acked-by: Mike Rapoport <rppt@linux.ibm.com >
Cc: Catalin Marinas <catalin.marinas@arm.com > [arm64]
Cc: Steven Price <steven.price@arm.com >
Cc: Alexander Viro <viro@zeniv.linux.org.uk >
Cc: Guan Xuetao <gxt@pku.edu.cn >
Cc: Russell King <linux@armlinux.org.uk >
Cc: Will Deacon <will.deacon@arm.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2019-05-14 09:47:47 -07:00
Mike Rapoport
57c8a661d9
mm: remove include/linux/bootmem.h
...
Move remaining definitions and declarations from include/linux/bootmem.h
into include/linux/memblock.h and remove the redundant header.
The includes were replaced with the semantic patch below and then
semi-automated removal of duplicated '#include <linux/memblock.h>
@@
@@
- #include <linux/bootmem.h>
+ #include <linux/memblock.h>
[sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h]
Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au
[sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h]
Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au
[sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal]
Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au
Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com >
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au >
Acked-by: Michal Hocko <mhocko@suse.com >
Cc: Catalin Marinas <catalin.marinas@arm.com >
Cc: Chris Zankel <chris@zankel.net >
Cc: "David S. Miller" <davem@davemloft.net >
Cc: Geert Uytterhoeven <geert@linux-m68k.org >
Cc: Greentime Hu <green.hu@gmail.com >
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
Cc: Guan Xuetao <gxt@pku.edu.cn >
Cc: Ingo Molnar <mingo@redhat.com >
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org >
Cc: Jonas Bonn <jonas@southpole.se >
Cc: Jonathan Corbet <corbet@lwn.net >
Cc: Ley Foon Tan <lftan@altera.com >
Cc: Mark Salter <msalter@redhat.com >
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com >
Cc: Matt Turner <mattst88@gmail.com >
Cc: Michael Ellerman <mpe@ellerman.id.au >
Cc: Michal Simek <monstr@monstr.eu >
Cc: Palmer Dabbelt <palmer@sifive.com >
Cc: Paul Burton <paul.burton@mips.com >
Cc: Richard Kuo <rkuo@codeaurora.org >
Cc: Richard Weinberger <richard@nod.at >
Cc: Rich Felker <dalias@libc.org >
Cc: Russell King <linux@armlinux.org.uk >
Cc: Serge Semin <fancer.lancer@gmail.com >
Cc: Thomas Gleixner <tglx@linutronix.de >
Cc: Tony Luck <tony.luck@intel.com >
Cc: Vineet Gupta <vgupta@synopsys.com >
Cc: Yoshinori Sato <ysato@users.sourceforge.jp >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2018-10-31 08:54:16 -07:00
Mike Rapoport
c6ffc5ca8f
memblock: rename free_all_bootmem to memblock_free_all
...
The conversion is done using
sed -i 's@free_all_bootmem@memblock_free_all@' \
$(git grep -l free_all_bootmem)
Link: http://lkml.kernel.org/r/1536927045-23536-26-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com >
Acked-by: Michal Hocko <mhocko@suse.com >
Cc: Catalin Marinas <catalin.marinas@arm.com >
Cc: Chris Zankel <chris@zankel.net >
Cc: "David S. Miller" <davem@davemloft.net >
Cc: Geert Uytterhoeven <geert@linux-m68k.org >
Cc: Greentime Hu <green.hu@gmail.com >
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
Cc: Guan Xuetao <gxt@pku.edu.cn >
Cc: Ingo Molnar <mingo@redhat.com >
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org >
Cc: Jonas Bonn <jonas@southpole.se >
Cc: Jonathan Corbet <corbet@lwn.net >
Cc: Ley Foon Tan <lftan@altera.com >
Cc: Mark Salter <msalter@redhat.com >
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com >
Cc: Matt Turner <mattst88@gmail.com >
Cc: Michael Ellerman <mpe@ellerman.id.au >
Cc: Michal Simek <monstr@monstr.eu >
Cc: Palmer Dabbelt <palmer@sifive.com >
Cc: Paul Burton <paul.burton@mips.com >
Cc: Richard Kuo <rkuo@codeaurora.org >
Cc: Richard Weinberger <richard@nod.at >
Cc: Rich Felker <dalias@libc.org >
Cc: Russell King <linux@armlinux.org.uk >
Cc: Serge Semin <fancer.lancer@gmail.com >
Cc: Thomas Gleixner <tglx@linutronix.de >
Cc: Tony Luck <tony.luck@intel.com >
Cc: Vineet Gupta <vgupta@synopsys.com >
Cc: Yoshinori Sato <ysato@users.sourceforge.jp >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2018-10-31 08:54:16 -07:00
Fabian Frederick
bd721ea73e
treewide: replace obsolete _refok by __ref
...
There was only one use of __initdata_refok and __exit_refok
__init_refok was used 46 times against 82 for __ref.
Those definitions are obsolete since commit 312b1485fbhttp://lkml.kernel.org/r/1466796271-3043-1-git-send-email-fabf@skynet.be
Signed-off-by: Fabian Frederick <fabf@skynet.be >
Cc: Ingo Molnar <mingo@redhat.com >
Cc: Sam Ravnborg <sam@ravnborg.org >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2016-08-02 17:31:41 -04:00
Ley Foon Tan
5ccc6af5e8
nios2: Memory management
...
This patch contains the initialisation of the memory blocks, MMU
attributes and the memory map.
Signed-off-by: Ley Foon Tan <lftan@altera.com >
2014-12-08 12:55:51 +08:00
