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Commit 43423669 authored by TARKZiM's avatar TARKZiM
Browse files

Revert "mm: pass readahead info down to the i/o scheduler" 

This reverts commit a4fe692d.
parent fdb14c28

include/linux/page-flags.h

+0 −1
Original line number Diff line number Diff line
@@ -109,7 +109,6 @@ enum pageflags { 
#ifdef CONFIG_TRANSPARENT_HUGEPAGE

	PG_compound_lock,

#endif

	PG_readahead,		/* page in a readahead window */

	__NR_PAGEFLAGS,



	/* Filesystems */

mm/page_alloc.c

+0 −1
Original line number Diff line number Diff line
@@ -6533,7 +6533,6 @@ static const struct trace_print_flags pageflag_names[] = { 
#ifdef CONFIG_TRANSPARENT_HUGEPAGE

	{1UL << PG_compound_lock,	"compound_lock"	},

#endif

	{1UL << PG_readahead,           "PG_readahead"  },

};



static void dump_page_flags(unsigned long flags)

mm/readahead.c

+0 −3
Original line number Diff line number Diff line
@@ -186,9 +186,6 @@ __do_page_cache_readahead(struct address_space *mapping, struct file *filp, 
		if (!page)

			break;

		page->index = page_offset;



		page->flags |= (1L << PG_readahead);



		list_add(&page->lru, &page_pool);

		if (page_idx == nr_to_read - lookahead_size)

			SetPageReadahead(page);