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Message-ID: <m33b77wug4.fsf@bzzz.home.net> Date: Fri, 22 Dec 2006 23:23:55 +0300 From: Alex Tomas <alex@...sterfs.com> To: linux-ext4@...r.kernel.org Cc: <linux-kernel@...r.kernel.org>, alex@...sterfs.com Subject: [RFC] booked-page-flag.patch Index: linux-2.6.20-rc1/include/linux/page-flags.h =================================================================== --- linux-2.6.20-rc1.orig/include/linux/page-flags.h 2006-12-14 04:14:23.000000000 +0300 +++ linux-2.6.20-rc1/include/linux/page-flags.h 2006-12-22 20:05:31.000000000 +0300 @@ -90,6 +90,7 @@ #define PG_reclaim 17 /* To be reclaimed asap */ #define PG_nosave_free 18 /* Used for system suspend/resume */ #define PG_buddy 19 /* Page is free, on buddy lists */ +#define PG_booked 20 /* Has blocks reserved on-disk */ #if (BITS_PER_LONG > 32) @@ -230,6 +231,10 @@ static inline void SetPageUptodate(struc #define SetPageMappedToDisk(page) set_bit(PG_mappedtodisk, &(page)->flags) #define ClearPageMappedToDisk(page) clear_bit(PG_mappedtodisk, &(page)->flags) +#define PageBooked(page) test_bit(PG_booked, &(page)->flags) +#define SetPageBooked(page) set_bit(PG_booked, &(page)->flags) +#define ClearPageBooked(page) clear_bit(PG_booked, &(page)->flags) + #define PageReclaim(page) test_bit(PG_reclaim, &(page)->flags) #define SetPageReclaim(page) set_bit(PG_reclaim, &(page)->flags) #define ClearPageReclaim(page) clear_bit(PG_reclaim, &(page)->flags) - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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