minix/servers/mfs/clean.h


#ifndef _MFS_CLEAN_H
#define _MFS_CLEAN_H 1

#define MARKDIRTY(b) do { if(superblock.s_dev == (b)->b_dev && superblock.s_rd_only) { printf("%s:%d: dirty block on rofs! ", __FILE__, __LINE__); util_stacktrace(); } else { (b)->b_dirt = BP_DIRTY; } } while(0)
#define MARKCLEAN(b) ((b)->b_dirt = BP_CLEAN)

#define ISDIRTY(b)	((b)->b_dirt == BP_DIRTY)
#define ISCLEAN(b)	((b)->b_dirt == BP_CLEAN)

#define BP_SETDEV(b, dev) do { assert((dev) != NO_DEV); (b)->b_dev = (dev); } while(0)
#define BP_CLEARDEV(b) do { (b)->b_dev = NO_DEV; MARKCLEAN(b); } while(0)

#endif
mfs: use macros to mark blocks and inodes dirty . No functional change . Only serves to get hooks to do checks in . e.g. should things be marked dirty when we are mounted readonly Signed-off-by: Ben Gras <ben@minix3.org> 2011-12-22 01:29:27 +01:00
			`#ifndef _MFS_CLEAN_H`
			`#define _MFS_CLEAN_H 1`

mfs: restore readonly mounting . use dirty marking hooks to check and warn when inodes/bufs are marked dirty on a readonly mounted fs . add readonly mount checks to restore readonly mounting Signed-off-by: Ben Gras <ben@minix3.org> 2011-12-22 01:29:27 +01:00			`#define MARKDIRTY(b) do { if(superblock.s_dev == (b)->b_dev && superblock.s_rd_only) { printf("%s:%d: dirty block on rofs! ", __FILE__, __LINE__); util_stacktrace(); } else { (b)->b_dirt = BP_DIRTY; } } while(0)`
mfs: use macros to mark blocks and inodes dirty . No functional change . Only serves to get hooks to do checks in . e.g. should things be marked dirty when we are mounted readonly Signed-off-by: Ben Gras <ben@minix3.org> 2011-12-22 01:29:27 +01:00			`#define MARKCLEAN(b) ((b)->b_dirt = BP_CLEAN)`

			`#define ISDIRTY(b) ((b)->b_dirt == BP_DIRTY)`
			`#define ISCLEAN(b) ((b)->b_dirt == BP_CLEAN)`

mfs: mark blocks clean when invalidated . it could happen that newly filled blocks were still marked dirty . causing unnecessary i/o and the new warning of the superblock being written 2012-01-13 16:05:32 +01:00			`#define BP_SETDEV(b, dev) do { assert((dev) != NO_DEV); (b)->b_dev = (dev); } while(0)`
			`#define BP_CLEARDEV(b) do { (b)->b_dev = NO_DEV; MARKCLEAN(b); } while(0)`

mfs: use macros to mark blocks and inodes dirty . No functional change . Only serves to get hooks to do checks in . e.g. should things be marked dirty when we are mounted readonly Signed-off-by: Ben Gras <ben@minix3.org> 2011-12-22 01:29:27 +01:00			`#endif`