mm, tracing: make show_gfp_flags() up to date
The show_gfp_flags() macro provides human-friendly printing of gfp flags in tracepoints. However, it is somewhat out of date and missing several flags. This patches fills in the missing flags, and distinguishes properly between GFP_ATOMIC and __GFP_ATOMIC which were both translated to "GFP_ATOMIC". More generally, all __GFP_X flags which were previously printed as GFP_X, are now printed as __GFP_X, since ommiting the underscores results in output that doesn't actually match the source code, and can only lead to confusion. Where both variants are defined equal (e.g. _DMA and _DMA32), the variant without underscores are preferred. Also add a note in gfp.h so hopefully future changes will be synced better. __GFP_MOVABLE is defined twice in include/linux/gfp.h with different comments. Leave just the newer one, which was intended to replace the old one. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Michal Hocko <mhocko@suse.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -9,6 +9,11 @@
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struct vm_area_struct;
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struct vm_area_struct;
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/*
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* In case of changes, please don't forget to update
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* include/trace/events/gfpflags.h
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*/
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/* Plain integer GFP bitmasks. Do not use this directly. */
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/* Plain integer GFP bitmasks. Do not use this directly. */
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#define ___GFP_DMA 0x01u
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#define ___GFP_DMA 0x01u
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#define ___GFP_HIGHMEM 0x02u
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#define ___GFP_HIGHMEM 0x02u
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@ -48,7 +53,6 @@ struct vm_area_struct;
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#define __GFP_DMA ((__force gfp_t)___GFP_DMA)
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#define __GFP_DMA ((__force gfp_t)___GFP_DMA)
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#define __GFP_HIGHMEM ((__force gfp_t)___GFP_HIGHMEM)
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#define __GFP_HIGHMEM ((__force gfp_t)___GFP_HIGHMEM)
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#define __GFP_DMA32 ((__force gfp_t)___GFP_DMA32)
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#define __GFP_DMA32 ((__force gfp_t)___GFP_DMA32)
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#define __GFP_MOVABLE ((__force gfp_t)___GFP_MOVABLE) /* Page is movable */
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#define __GFP_MOVABLE ((__force gfp_t)___GFP_MOVABLE) /* ZONE_MOVABLE allowed */
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#define __GFP_MOVABLE ((__force gfp_t)___GFP_MOVABLE) /* ZONE_MOVABLE allowed */
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#define GFP_ZONEMASK (__GFP_DMA|__GFP_HIGHMEM|__GFP_DMA32|__GFP_MOVABLE)
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#define GFP_ZONEMASK (__GFP_DMA|__GFP_HIGHMEM|__GFP_DMA32|__GFP_MOVABLE)
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@ -15,29 +15,38 @@
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{(unsigned long)GFP_HIGHUSER, "GFP_HIGHUSER"}, \
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{(unsigned long)GFP_HIGHUSER, "GFP_HIGHUSER"}, \
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{(unsigned long)GFP_USER, "GFP_USER"}, \
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{(unsigned long)GFP_USER, "GFP_USER"}, \
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{(unsigned long)GFP_TEMPORARY, "GFP_TEMPORARY"}, \
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{(unsigned long)GFP_TEMPORARY, "GFP_TEMPORARY"}, \
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{(unsigned long)GFP_KERNEL_ACCOUNT, "GFP_KERNEL_ACCOUNT"}, \
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{(unsigned long)GFP_KERNEL, "GFP_KERNEL"}, \
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{(unsigned long)GFP_KERNEL, "GFP_KERNEL"}, \
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{(unsigned long)GFP_NOFS, "GFP_NOFS"}, \
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{(unsigned long)GFP_NOFS, "GFP_NOFS"}, \
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{(unsigned long)GFP_ATOMIC, "GFP_ATOMIC"}, \
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{(unsigned long)GFP_ATOMIC, "GFP_ATOMIC"}, \
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{(unsigned long)GFP_NOIO, "GFP_NOIO"}, \
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{(unsigned long)GFP_NOIO, "GFP_NOIO"}, \
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{(unsigned long)__GFP_HIGH, "GFP_HIGH"}, \
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{(unsigned long)GFP_NOWAIT, "GFP_NOWAIT"}, \
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{(unsigned long)__GFP_ATOMIC, "GFP_ATOMIC"}, \
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{(unsigned long)GFP_DMA, "GFP_DMA"}, \
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{(unsigned long)__GFP_IO, "GFP_IO"}, \
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{(unsigned long)__GFP_HIGHMEM, "__GFP_HIGHMEM"}, \
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{(unsigned long)__GFP_COLD, "GFP_COLD"}, \
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{(unsigned long)GFP_DMA32, "GFP_DMA32"}, \
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{(unsigned long)__GFP_NOWARN, "GFP_NOWARN"}, \
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{(unsigned long)__GFP_HIGH, "__GFP_HIGH"}, \
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{(unsigned long)__GFP_REPEAT, "GFP_REPEAT"}, \
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{(unsigned long)__GFP_ATOMIC, "__GFP_ATOMIC"}, \
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{(unsigned long)__GFP_NOFAIL, "GFP_NOFAIL"}, \
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{(unsigned long)__GFP_IO, "__GFP_IO"}, \
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{(unsigned long)__GFP_NORETRY, "GFP_NORETRY"}, \
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{(unsigned long)__GFP_FS, "__GFP_FS"}, \
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{(unsigned long)__GFP_COMP, "GFP_COMP"}, \
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{(unsigned long)__GFP_COLD, "__GFP_COLD"}, \
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{(unsigned long)__GFP_ZERO, "GFP_ZERO"}, \
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{(unsigned long)__GFP_NOWARN, "__GFP_NOWARN"}, \
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{(unsigned long)__GFP_NOMEMALLOC, "GFP_NOMEMALLOC"}, \
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{(unsigned long)__GFP_REPEAT, "__GFP_REPEAT"}, \
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{(unsigned long)__GFP_MEMALLOC, "GFP_MEMALLOC"}, \
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{(unsigned long)__GFP_NOFAIL, "__GFP_NOFAIL"}, \
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{(unsigned long)__GFP_HARDWALL, "GFP_HARDWALL"}, \
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{(unsigned long)__GFP_NORETRY, "__GFP_NORETRY"}, \
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{(unsigned long)__GFP_THISNODE, "GFP_THISNODE"}, \
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{(unsigned long)__GFP_COMP, "__GFP_COMP"}, \
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{(unsigned long)__GFP_RECLAIMABLE, "GFP_RECLAIMABLE"}, \
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{(unsigned long)__GFP_ZERO, "__GFP_ZERO"}, \
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{(unsigned long)__GFP_MOVABLE, "GFP_MOVABLE"}, \
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{(unsigned long)__GFP_NOMEMALLOC, "__GFP_NOMEMALLOC"}, \
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{(unsigned long)__GFP_NOTRACK, "GFP_NOTRACK"}, \
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{(unsigned long)__GFP_MEMALLOC, "__GFP_MEMALLOC"}, \
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{(unsigned long)__GFP_DIRECT_RECLAIM, "GFP_DIRECT_RECLAIM"}, \
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{(unsigned long)__GFP_HARDWALL, "__GFP_HARDWALL"}, \
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{(unsigned long)__GFP_KSWAPD_RECLAIM, "GFP_KSWAPD_RECLAIM"}, \
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{(unsigned long)__GFP_THISNODE, "__GFP_THISNODE"}, \
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{(unsigned long)__GFP_OTHER_NODE, "GFP_OTHER_NODE"} \
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{(unsigned long)__GFP_RECLAIMABLE, "__GFP_RECLAIMABLE"}, \
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) : "GFP_NOWAIT"
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{(unsigned long)__GFP_MOVABLE, "__GFP_MOVABLE"}, \
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{(unsigned long)__GFP_ACCOUNT, "__GFP_ACCOUNT"}, \
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{(unsigned long)__GFP_NOTRACK, "__GFP_NOTRACK"}, \
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{(unsigned long)__GFP_WRITE, "__GFP_WRITE"}, \
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{(unsigned long)__GFP_RECLAIM, "__GFP_RECLAIM"}, \
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{(unsigned long)__GFP_DIRECT_RECLAIM, "__GFP_DIRECT_RECLAIM"},\
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{(unsigned long)__GFP_KSWAPD_RECLAIM, "__GFP_KSWAPD_RECLAIM"},\
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{(unsigned long)__GFP_OTHER_NODE, "__GFP_OTHER_NODE"} \
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) : "none"
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