linux-toradex.git/include/linux/vmalloc.h, branch v5.10-rc3

mm: remove alloc_vm_area

2020-10-18T16:27:10+00:00

All users are gone now.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Cc: Boris Ostrovsky 
Cc: Chris Wilson 
Cc: Jani Nikula 
Cc: Joonas Lahtinen 
Cc: Juergen Gross 
Cc: Matthew Auld 
Cc: "Matthew Wilcox (Oracle)" 
Cc: Minchan Kim 
Cc: Nitin Gupta 
Cc: Peter Zijlstra 
Cc: Rodrigo Vivi 
Cc: Stefano Stabellini 
Cc: Tvrtko Ursulin 
Cc: Uladzislau Rezki (Sony) 
Link: https://lkml.kernel.org/r/20201002122204.1534411-12-hch@lst.de
Signed-off-by: Linus Torvalds

mm: add a vmap_pfn function

2020-10-18T16:27:10+00:00

Add a proper helper to remap PFNs into kernel virtual space so that
drivers don't have to abuse alloc_vm_area and open coded PTE manipulation
for it.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Cc: Boris Ostrovsky 
Cc: Chris Wilson 
Cc: Jani Nikula 
Cc: Joonas Lahtinen 
Cc: Juergen Gross 
Cc: Matthew Auld 
Cc: "Matthew Wilcox (Oracle)" 
Cc: Minchan Kim 
Cc: Nitin Gupta 
Cc: Peter Zijlstra 
Cc: Rodrigo Vivi 
Cc: Stefano Stabellini 
Cc: Tvrtko Ursulin 
Cc: Uladzislau Rezki (Sony) 
Link: https://lkml.kernel.org/r/20201002122204.1534411-4-hch@lst.de
Signed-off-by: Linus Torvalds

mm: add a VM_MAP_PUT_PAGES flag for vmap

2020-10-18T16:27:10+00:00

Add a flag so that vmap takes ownership of the passed in page array.  When
vfree is called on such an allocation it will put one reference on each
page, and free the page array itself.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Cc: Boris Ostrovsky 
Cc: Chris Wilson 
Cc: Jani Nikula 
Cc: Joonas Lahtinen 
Cc: Juergen Gross 
Cc: Matthew Auld 
Cc: "Matthew Wilcox (Oracle)" 
Cc: Minchan Kim 
Cc: Nitin Gupta 
Cc: Peter Zijlstra 
Cc: Rodrigo Vivi 
Cc: Stefano Stabellini 
Cc: Tvrtko Ursulin 
Cc: Uladzislau Rezki (Sony) 
Link: https://lkml.kernel.org/r/20201002122204.1534411-3-hch@lst.de
Signed-off-by: Linus Torvalds

mm: remove vmalloc_exec

2020-06-26T07:27:38+00:00

Merge vmalloc_exec into its only caller.  Note that for !CONFIG_MMU
__vmalloc_node_range maps to __vmalloc, which directly clears the
__GFP_HIGHMEM added by the vmalloc_exec stub anyway.

Link: http://lkml.kernel.org/r/20200618064307.32739-4-hch@lst.de
Signed-off-by: Christoph Hellwig 
Reviewed-by: David Hildenbrand 
Acked-by: Peter Zijlstra (Intel) 
Cc: Catalin Marinas 
Cc: Dexuan Cui 
Cc: Jessica Yu 
Cc: Vitaly Kuznetsov 
Cc: Wei Liu 
Cc: Will Deacon 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: remove vmalloc_sync_(un)mappings()

2020-06-02T17:59:12+00:00

These functions are not needed anymore because the vmalloc and ioremap
mappings are now synchronized when they are created or torn down.

Remove all callers and function definitions.

Signed-off-by: Joerg Roedel 
Signed-off-by: Andrew Morton 
Tested-by: Steven Rostedt (VMware) 
Acked-by: Andy Lutomirski 
Acked-by: Peter Zijlstra (Intel) 
Cc: Arnd Bergmann 
Cc: Christoph Hellwig 
Cc: Dave Hansen 
Cc: "H . Peter Anvin" 
Cc: Ingo Molnar 
Cc: Matthew Wilcox (Oracle) 
Cc: Michal Hocko 
Cc: "Rafael J. Wysocki" 
Cc: Thomas Gleixner 
Cc: Vlastimil Babka 
Link: http://lkml.kernel.org/r/20200515140023.25469-7-joro@8bytes.org
Signed-off-by: Linus Torvalds

mm/vmalloc: track which page-table levels were modified

2020-06-02T17:59:11+00:00

Track at which levels in the page-table entries were modified by
vmap/vunmap.

After the page-table has been modified, use that information do decide
whether the new arch_sync_kernel_mappings() needs to be called.

[akpm@linux-foundation.org: map_kernel_range_noflush() needs the arch_sync_kernel_mappings() call]
Signed-off-by: Joerg Roedel 
Signed-off-by: Andrew Morton 
Acked-by: Andy Lutomirski 
Acked-by: Peter Zijlstra (Intel) 
Cc: Arnd Bergmann 
Cc: Christoph Hellwig 
Cc: Dave Hansen 
Cc: "H . Peter Anvin" 
Cc: Ingo Molnar 
Cc: Matthew Wilcox (Oracle) 
Cc: Michal Hocko 
Cc: "Rafael J. Wysocki" 
Cc: Steven Rostedt (VMware) 
Cc: Thomas Gleixner 
Cc: Vlastimil Babka 
Link: http://lkml.kernel.org/r/20200515140023.25469-3-joro@8bytes.org
Signed-off-by: Linus Torvalds

mm: remove vmalloc_user_node_flags

2020-06-02T17:59:11+00:00

Open code it in __bpf_map_area_alloc, which is the only caller.  Also
clean up __bpf_map_area_alloc to have a single vmalloc call with slightly
different flags instead of the current two different calls.

For this to compile for the nommu case add a __vmalloc_node_range stub to
nommu.c.

[akpm@linux-foundation.org: fix nommu.c build]
Signed-off-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Acked-by: Peter Zijlstra (Intel) 
Acked-by: Johannes Weiner 
Cc: Christian Borntraeger 
Cc: Christophe Leroy 
Cc: Daniel Vetter 
Cc: David Airlie 
Cc: Gao Xiang 
Cc: Greg Kroah-Hartman 
Cc: Haiyang Zhang 
Cc: "K. Y. Srinivasan" 
Cc: Laura Abbott 
Cc: Mark Rutland 
Cc: Michael Kelley 
Cc: Minchan Kim 
Cc: Nitin Gupta 
Cc: Robin Murphy 
Cc: Sakari Ailus 
Cc: Stephen Hemminger 
Cc: Sumit Semwal 
Cc: Wei Liu 
Cc: Benjamin Herrenschmidt 
Cc: Catalin Marinas 
Cc: Heiko Carstens 
Cc: Paul Mackerras 
Cc: Vasily Gorbik 
Cc: Will Deacon 
Cc: Stephen Rothwell 
Link: http://lkml.kernel.org/r/20200414131348.444715-27-hch@lst.de
Signed-off-by: Linus Torvalds

mm: remove __vmalloc_node_flags_caller

2020-06-02T17:59:11+00:00

Just use __vmalloc_node instead which gets and extra argument.  To be able
to to use __vmalloc_node in all caller make it available outside of
vmalloc and implement it in nommu.c.

[akpm@linux-foundation.org: fix nommu build]
Signed-off-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Acked-by: Peter Zijlstra (Intel) 
Cc: Christian Borntraeger 
Cc: Christophe Leroy 
Cc: Daniel Vetter 
Cc: David Airlie 
Cc: Gao Xiang 
Cc: Greg Kroah-Hartman 
Cc: Haiyang Zhang 
Cc: Johannes Weiner 
Cc: "K. Y. Srinivasan" 
Cc: Laura Abbott 
Cc: Mark Rutland 
Cc: Michael Kelley 
Cc: Minchan Kim 
Cc: Nitin Gupta 
Cc: Robin Murphy 
Cc: Sakari Ailus 
Cc: Stephen Hemminger 
Cc: Sumit Semwal 
Cc: Wei Liu 
Cc: Benjamin Herrenschmidt 
Cc: Catalin Marinas 
Cc: Heiko Carstens 
Cc: Paul Mackerras 
Cc: Vasily Gorbik 
Cc: Will Deacon 
Cc: Stephen Rothwell 
Link: http://lkml.kernel.org/r/20200414131348.444715-25-hch@lst.de
Signed-off-by: Linus Torvalds

mm: remove both instances of __vmalloc_node_flags

2020-06-02T17:59:11+00:00

The real version just had a few callers that can open code it and remove
one layer of indirection.  The nommu stub was public but only had a single
caller, so remove it and avoid a CONFIG_MMU ifdef in vmalloc.h.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Acked-by: Peter Zijlstra (Intel) 
Cc: Christian Borntraeger 
Cc: Christophe Leroy 
Cc: Daniel Vetter 
Cc: David Airlie 
Cc: Gao Xiang 
Cc: Greg Kroah-Hartman 
Cc: Haiyang Zhang 
Cc: Johannes Weiner 
Cc: "K. Y. Srinivasan" 
Cc: Laura Abbott 
Cc: Mark Rutland 
Cc: Michael Kelley 
Cc: Minchan Kim 
Cc: Nitin Gupta 
Cc: Robin Murphy 
Cc: Sakari Ailus 
Cc: Stephen Hemminger 
Cc: Sumit Semwal 
Cc: Wei Liu 
Cc: Benjamin Herrenschmidt 
Cc: Catalin Marinas 
Cc: Heiko Carstens 
Cc: Paul Mackerras 
Cc: Vasily Gorbik 
Cc: Will Deacon 
Link: http://lkml.kernel.org/r/20200414131348.444715-24-hch@lst.de
Signed-off-by: Linus Torvalds

mm: remove the pgprot argument to __vmalloc

2020-06-02T17:59:11+00:00

The pgprot argument to __vmalloc is always PAGE_KERNEL now, so remove it.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Reviewed-by: Michael Kelley  [hyperv]
Acked-by: Gao Xiang  [erofs]
Acked-by: Peter Zijlstra (Intel) 
Acked-by: Wei Liu 
Cc: Christian Borntraeger 
Cc: Christophe Leroy 
Cc: Daniel Vetter 
Cc: David Airlie 
Cc: Greg Kroah-Hartman 
Cc: Haiyang Zhang 
Cc: Johannes Weiner 
Cc: "K. Y. Srinivasan" 
Cc: Laura Abbott 
Cc: Mark Rutland 
Cc: Minchan Kim 
Cc: Nitin Gupta 
Cc: Robin Murphy 
Cc: Sakari Ailus 
Cc: Stephen Hemminger 
Cc: Sumit Semwal 
Cc: Benjamin Herrenschmidt 
Cc: Catalin Marinas 
Cc: Heiko Carstens 
Cc: Paul Mackerras 
Cc: Vasily Gorbik 
Cc: Will Deacon 
Link: http://lkml.kernel.org/r/20200414131348.444715-22-hch@lst.de
Signed-off-by: Linus Torvalds