mm, tracing: unify mm flags handling in tracepoints and printk
In tracepoints, it's possible to print gfp flags in a human-friendly format through a macro show_gfp_flags(), which defines a translation array and passes is to __print_flags(). Since the following patch will introduce support for gfp flags printing in printk(), it would be nice to reuse the array. This is not straightforward, since __print_flags() can't simply reference an array defined in a .c file such as mm/debug.c - it has to be a macro to allow the macro magic to communicate the format to userspace tools such as trace-cmd. The solution is to create a macro __def_gfpflag_names which is used both in show_gfp_flags(), and to define the gfpflag_names[] array in mm/debug.c. On the other hand, mm/debug.c also defines translation tables for page flags and vma flags, and desire was expressed (but not implemented in this series) to use these also from tracepoints. Thus, this patch also renames the events/gfpflags.h file to events/mmflags.h and moves the table definitions there, using the same macro approach as for gfpflags. This allows translating all three kinds of mm-specific flags both in tracepoints and printk. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Michal Hocko <mhocko@suse.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>hifive-unleashed-5.1
Vlastimil Babka
Linus Torvalds
parent
14e0a214d6
commit
420adbe9fc
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@ -11,7 +11,7 @@ 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 and tools/perf/builtin-kmem.c
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* include/trace/events/mmflags.h and tools/perf/builtin-kmem.c
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*/
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/* Plain integer GFP bitmasks. Do not use this directly. */
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@ -6,7 +6,7 @@
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#include <linux/writeback.h>
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#include <linux/tracepoint.h>
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#include <trace/events/gfpflags.h>
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#include <trace/events/mmflags.h>
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struct btrfs_root;
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struct btrfs_fs_info;
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@ -7,7 +7,7 @@
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/tracepoint.h>
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#include <trace/events/gfpflags.h>
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#include <trace/events/mmflags.h>
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#define COMPACTION_STATUS \
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EM( COMPACT_DEFERRED, "deferred") \
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@ -1,52 +0,0 @@
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/*
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* The order of these masks is important. Matching masks will be seen
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* first and the left over flags will end up showing by themselves.
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*
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* For example, if we have GFP_KERNEL before GFP_USER we wil get:
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*
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* GFP_KERNEL|GFP_HARDWALL
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*
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* Thus most bits set go first.
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*/
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#define show_gfp_flags(flags) \
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(flags) ? __print_flags(flags, "|", \
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{(unsigned long)GFP_TRANSHUGE, "GFP_TRANSHUGE"}, \
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{(unsigned long)GFP_HIGHUSER_MOVABLE, "GFP_HIGHUSER_MOVABLE"},\
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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_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_NOFS, "GFP_NOFS"}, \
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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_NOWAIT, "GFP_NOWAIT"}, \
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{(unsigned long)GFP_DMA, "GFP_DMA"}, \
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{(unsigned long)__GFP_HIGHMEM, "__GFP_HIGHMEM"}, \
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{(unsigned long)GFP_DMA32, "GFP_DMA32"}, \
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{(unsigned long)__GFP_HIGH, "__GFP_HIGH"}, \
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{(unsigned long)__GFP_ATOMIC, "__GFP_ATOMIC"}, \
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{(unsigned long)__GFP_IO, "__GFP_IO"}, \
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{(unsigned long)__GFP_FS, "__GFP_FS"}, \
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{(unsigned long)__GFP_COLD, "__GFP_COLD"}, \
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{(unsigned long)__GFP_NOWARN, "__GFP_NOWARN"}, \
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{(unsigned long)__GFP_REPEAT, "__GFP_REPEAT"}, \
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{(unsigned long)__GFP_NOFAIL, "__GFP_NOFAIL"}, \
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{(unsigned long)__GFP_NORETRY, "__GFP_NORETRY"}, \
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{(unsigned long)__GFP_COMP, "__GFP_COMP"}, \
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{(unsigned long)__GFP_ZERO, "__GFP_ZERO"}, \
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{(unsigned long)__GFP_NOMEMALLOC, "__GFP_NOMEMALLOC"}, \
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{(unsigned long)__GFP_MEMALLOC, "__GFP_MEMALLOC"}, \
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{(unsigned long)__GFP_HARDWALL, "__GFP_HARDWALL"}, \
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{(unsigned long)__GFP_THISNODE, "__GFP_THISNODE"}, \
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{(unsigned long)__GFP_RECLAIMABLE, "__GFP_RECLAIMABLE"}, \
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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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@ -6,8 +6,6 @@
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#include <linux/tracepoint.h>
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#include <trace/events/gfpflags.h>
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#define SCAN_STATUS \
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EM( SCAN_FAIL, "failed") \
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EM( SCAN_SUCCEED, "succeeded") \
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@ -6,7 +6,7 @@
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#include <linux/types.h>
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#include <linux/tracepoint.h>
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#include <trace/events/gfpflags.h>
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#include <trace/events/mmflags.h>
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DECLARE_EVENT_CLASS(kmem_alloc,
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@ -0,0 +1,164 @@
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/*
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* The order of these masks is important. Matching masks will be seen
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* first and the left over flags will end up showing by themselves.
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*
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* For example, if we have GFP_KERNEL before GFP_USER we wil get:
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*
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* GFP_KERNEL|GFP_HARDWALL
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*
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* Thus most bits set go first.
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*/
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#define __def_gfpflag_names \
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{(unsigned long)GFP_TRANSHUGE, "GFP_TRANSHUGE"}, \
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{(unsigned long)GFP_HIGHUSER_MOVABLE, "GFP_HIGHUSER_MOVABLE"},\
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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_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_NOFS, "GFP_NOFS"}, \
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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_NOWAIT, "GFP_NOWAIT"}, \
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{(unsigned long)GFP_DMA, "GFP_DMA"}, \
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{(unsigned long)__GFP_HIGHMEM, "__GFP_HIGHMEM"}, \
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{(unsigned long)GFP_DMA32, "GFP_DMA32"}, \
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{(unsigned long)__GFP_HIGH, "__GFP_HIGH"}, \
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{(unsigned long)__GFP_ATOMIC, "__GFP_ATOMIC"}, \
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{(unsigned long)__GFP_IO, "__GFP_IO"}, \
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{(unsigned long)__GFP_FS, "__GFP_FS"}, \
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{(unsigned long)__GFP_COLD, "__GFP_COLD"}, \
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{(unsigned long)__GFP_NOWARN, "__GFP_NOWARN"}, \
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{(unsigned long)__GFP_REPEAT, "__GFP_REPEAT"}, \
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{(unsigned long)__GFP_NOFAIL, "__GFP_NOFAIL"}, \
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{(unsigned long)__GFP_NORETRY, "__GFP_NORETRY"}, \
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{(unsigned long)__GFP_COMP, "__GFP_COMP"}, \
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{(unsigned long)__GFP_ZERO, "__GFP_ZERO"}, \
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{(unsigned long)__GFP_NOMEMALLOC, "__GFP_NOMEMALLOC"}, \
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{(unsigned long)__GFP_MEMALLOC, "__GFP_MEMALLOC"}, \
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{(unsigned long)__GFP_HARDWALL, "__GFP_HARDWALL"}, \
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{(unsigned long)__GFP_THISNODE, "__GFP_THISNODE"}, \
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{(unsigned long)__GFP_RECLAIMABLE, "__GFP_RECLAIMABLE"}, \
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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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#define show_gfp_flags(flags) \
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(flags) ? __print_flags(flags, "|", \
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__def_gfpflag_names \
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) : "none"
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#ifdef CONFIG_MMU
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#define IF_HAVE_PG_MLOCK(flag,string) ,{1UL << flag, string}
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#else
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#define IF_HAVE_PG_MLOCK(flag,string)
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#endif
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#ifdef CONFIG_ARCH_USES_PG_UNCACHED
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#define IF_HAVE_PG_UNCACHED(flag,string) ,{1UL << flag, string}
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#else
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#define IF_HAVE_PG_UNCACHED(flag,string)
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#endif
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#ifdef CONFIG_MEMORY_FAILURE
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#define IF_HAVE_PG_HWPOISON(flag,string) ,{1UL << flag, string}
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#else
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#define IF_HAVE_PG_HWPOISON(flag,string)
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#endif
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#if defined(CONFIG_IDLE_PAGE_TRACKING) && defined(CONFIG_64BIT)
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#define IF_HAVE_PG_IDLE(flag,string) ,{1UL << flag, string}
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#else
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#define IF_HAVE_PG_IDLE(flag,string)
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#endif
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#define __def_pageflag_names \
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{1UL << PG_locked, "locked" }, \
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{1UL << PG_error, "error" }, \
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{1UL << PG_referenced, "referenced" }, \
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{1UL << PG_uptodate, "uptodate" }, \
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{1UL << PG_dirty, "dirty" }, \
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{1UL << PG_lru, "lru" }, \
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{1UL << PG_active, "active" }, \
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{1UL << PG_slab, "slab" }, \
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{1UL << PG_owner_priv_1, "owner_priv_1" }, \
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{1UL << PG_arch_1, "arch_1" }, \
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{1UL << PG_reserved, "reserved" }, \
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{1UL << PG_private, "private" }, \
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{1UL << PG_private_2, "private_2" }, \
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{1UL << PG_writeback, "writeback" }, \
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{1UL << PG_head, "head" }, \
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{1UL << PG_swapcache, "swapcache" }, \
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{1UL << PG_mappedtodisk, "mappedtodisk" }, \
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{1UL << PG_reclaim, "reclaim" }, \
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{1UL << PG_swapbacked, "swapbacked" }, \
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{1UL << PG_unevictable, "unevictable" } \
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IF_HAVE_PG_MLOCK(PG_mlocked, "mlocked" ) \
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IF_HAVE_PG_UNCACHED(PG_uncached, "uncached" ) \
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IF_HAVE_PG_HWPOISON(PG_hwpoison, "hwpoison" ) \
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IF_HAVE_PG_IDLE(PG_young, "young" ) \
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IF_HAVE_PG_IDLE(PG_idle, "idle" )
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#define show_page_flags(flags) \
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(flags) ? __print_flags(flags, "|", \
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__def_pageflag_names \
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) : "none"
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#if defined(CONFIG_X86)
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#define __VM_ARCH_SPECIFIC {VM_PAT, "pat" }
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#elif defined(CONFIG_PPC)
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#define __VM_ARCH_SPECIFIC {VM_SAO, "sao" }
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#elif defined(CONFIG_PARISC) || defined(CONFIG_METAG) || defined(CONFIG_IA64)
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#define __VM_ARCH_SPECIFIC {VM_GROWSUP, "growsup" }
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#elif !defined(CONFIG_MMU)
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#define __VM_ARCH_SPECIFIC {VM_MAPPED_COPY,"mappedcopy" }
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#else
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#define __VM_ARCH_SPECIFIC {VM_ARCH_1, "arch_1" }
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#endif
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#ifdef CONFIG_MEM_SOFT_DIRTY
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#define IF_HAVE_VM_SOFTDIRTY(flag,name) {flag, name },
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#else
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#define IF_HAVE_VM_SOFTDIRTY(flag,name)
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#endif
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#define __def_vmaflag_names \
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{VM_READ, "read" }, \
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{VM_WRITE, "write" }, \
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{VM_EXEC, "exec" }, \
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{VM_SHARED, "shared" }, \
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{VM_MAYREAD, "mayread" }, \
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{VM_MAYWRITE, "maywrite" }, \
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{VM_MAYEXEC, "mayexec" }, \
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{VM_MAYSHARE, "mayshare" }, \
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{VM_GROWSDOWN, "growsdown" }, \
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{VM_PFNMAP, "pfnmap" }, \
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{VM_DENYWRITE, "denywrite" }, \
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{VM_LOCKONFAULT, "lockonfault" }, \
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{VM_LOCKED, "locked" }, \
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{VM_IO, "io" }, \
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{VM_SEQ_READ, "seqread" }, \
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{VM_RAND_READ, "randread" }, \
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{VM_DONTCOPY, "dontcopy" }, \
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{VM_DONTEXPAND, "dontexpand" }, \
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{VM_ACCOUNT, "account" }, \
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{VM_NORESERVE, "noreserve" }, \
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{VM_HUGETLB, "hugetlb" }, \
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__VM_ARCH_SPECIFIC , \
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{VM_DONTDUMP, "dontdump" }, \
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IF_HAVE_VM_SOFTDIRTY(VM_SOFTDIRTY, "softdirty" ) \
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{VM_MIXEDMAP, "mixedmap" }, \
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{VM_HUGEPAGE, "hugepage" }, \
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{VM_NOHUGEPAGE, "nohugepage" }, \
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{VM_MERGEABLE, "mergeable" } \
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#define show_vma_flags(flags) \
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(flags) ? __print_flags(flags, "|", \
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__def_vmaflag_names \
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) : "none"
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@ -8,7 +8,7 @@
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#include <linux/tracepoint.h>
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#include <linux/mm.h>
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#include <linux/memcontrol.h>
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#include <trace/events/gfpflags.h>
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#include <trace/events/mmflags.h>
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#define RECLAIM_WB_ANON 0x0001u
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#define RECLAIM_WB_FILE 0x0002u
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88
mm/debug.c
88
mm/debug.c
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#include <linux/mm.h>
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#include <linux/trace_events.h>
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#include <linux/memcontrol.h>
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#include <trace/events/mmflags.h>
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static const struct trace_print_flags pageflag_names[] = {
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{1UL << PG_locked, "locked" },
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{1UL << PG_error, "error" },
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{1UL << PG_referenced, "referenced" },
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{1UL << PG_uptodate, "uptodate" },
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{1UL << PG_dirty, "dirty" },
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{1UL << PG_lru, "lru" },
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{1UL << PG_active, "active" },
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{1UL << PG_slab, "slab" },
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{1UL << PG_owner_priv_1, "owner_priv_1" },
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{1UL << PG_arch_1, "arch_1" },
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{1UL << PG_reserved, "reserved" },
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{1UL << PG_private, "private" },
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{1UL << PG_private_2, "private_2" },
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{1UL << PG_writeback, "writeback" },
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{1UL << PG_head, "head" },
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{1UL << PG_swapcache, "swapcache" },
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{1UL << PG_mappedtodisk, "mappedtodisk" },
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{1UL << PG_reclaim, "reclaim" },
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{1UL << PG_swapbacked, "swapbacked" },
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{1UL << PG_unevictable, "unevictable" },
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#ifdef CONFIG_MMU
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{1UL << PG_mlocked, "mlocked" },
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#endif
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#ifdef CONFIG_ARCH_USES_PG_UNCACHED
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{1UL << PG_uncached, "uncached" },
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#endif
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#ifdef CONFIG_MEMORY_FAILURE
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{1UL << PG_hwpoison, "hwpoison" },
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#endif
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#if defined(CONFIG_IDLE_PAGE_TRACKING) && defined(CONFIG_64BIT)
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{1UL << PG_young, "young" },
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{1UL << PG_idle, "idle" },
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#endif
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__def_pageflag_names
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};
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static const struct trace_print_flags gfpflag_names[] = {
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__def_gfpflag_names
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};
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static void dump_flags(unsigned long flags,
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@ -108,47 +81,8 @@ EXPORT_SYMBOL(dump_page);
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#ifdef CONFIG_DEBUG_VM
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static const struct trace_print_flags vmaflags_names[] = {
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{VM_READ, "read" },
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{VM_WRITE, "write" },
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{VM_EXEC, "exec" },
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{VM_SHARED, "shared" },
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{VM_MAYREAD, "mayread" },
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{VM_MAYWRITE, "maywrite" },
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{VM_MAYEXEC, "mayexec" },
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{VM_MAYSHARE, "mayshare" },
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{VM_GROWSDOWN, "growsdown" },
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{VM_PFNMAP, "pfnmap" },
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{VM_DENYWRITE, "denywrite" },
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{VM_LOCKONFAULT, "lockonfault" },
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{VM_LOCKED, "locked" },
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{VM_IO, "io" },
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{VM_SEQ_READ, "seqread" },
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{VM_RAND_READ, "randread" },
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{VM_DONTCOPY, "dontcopy" },
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{VM_DONTEXPAND, "dontexpand" },
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{VM_ACCOUNT, "account" },
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{VM_NORESERVE, "noreserve" },
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{VM_HUGETLB, "hugetlb" },
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#if defined(CONFIG_X86)
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{VM_PAT, "pat" },
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#elif defined(CONFIG_PPC)
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{VM_SAO, "sao" },
|
||||
#elif defined(CONFIG_PARISC) || defined(CONFIG_METAG) || defined(CONFIG_IA64)
|
||||
{VM_GROWSUP, "growsup" },
|
||||
#elif !defined(CONFIG_MMU)
|
||||
{VM_MAPPED_COPY, "mappedcopy" },
|
||||
#else
|
||||
{VM_ARCH_1, "arch_1" },
|
||||
#endif
|
||||
{VM_DONTDUMP, "dontdump" },
|
||||
#ifdef CONFIG_MEM_SOFT_DIRTY
|
||||
{VM_SOFTDIRTY, "softdirty" },
|
||||
#endif
|
||||
{VM_MIXEDMAP, "mixedmap" },
|
||||
{VM_HUGEPAGE, "hugepage" },
|
||||
{VM_NOHUGEPAGE, "nohugepage" },
|
||||
{VM_MERGEABLE, "mergeable" },
|
||||
static const struct trace_print_flags vmaflag_names[] = {
|
||||
__def_vmaflag_names
|
||||
};
|
||||
|
||||
void dump_vma(const struct vm_area_struct *vma)
|
||||
|
|
@ -162,7 +96,7 @@ void dump_vma(const struct vm_area_struct *vma)
|
|||
(unsigned long)pgprot_val(vma->vm_page_prot),
|
||||
vma->anon_vma, vma->vm_ops, vma->vm_pgoff,
|
||||
vma->vm_file, vma->vm_private_data);
|
||||
dump_flags(vma->vm_flags, vmaflags_names, ARRAY_SIZE(vmaflags_names));
|
||||
dump_flags(vma->vm_flags, vmaflag_names, ARRAY_SIZE(vmaflag_names));
|
||||
}
|
||||
EXPORT_SYMBOL(dump_vma);
|
||||
|
||||
|
|
@ -233,8 +167,8 @@ void dump_mm(const struct mm_struct *mm)
|
|||
"" /* This is here to not have a comma! */
|
||||
);
|
||||
|
||||
dump_flags(mm->def_flags, vmaflags_names,
|
||||
ARRAY_SIZE(vmaflags_names));
|
||||
dump_flags(mm->def_flags, vmaflag_names,
|
||||
ARRAY_SIZE(vmaflag_names));
|
||||
}
|
||||
|
||||
#endif /* CONFIG_DEBUG_VM */
|
||||
|
|
|
|||
|
|
@ -602,7 +602,7 @@ static int gfpcmp(const void *a, const void *b)
|
|||
return fa->flags - fb->flags;
|
||||
}
|
||||
|
||||
/* see include/trace/events/gfpflags.h */
|
||||
/* see include/trace/events/mmflags.h */
|
||||
static const struct {
|
||||
const char *original;
|
||||
const char *compact;
|
||||
|
|
|
|||
Loading…
Reference in New Issue