minix/servers/mfs/clean.h


#ifndef _MFS_CLEAN_H
#define _MFS_CLEAN_H 1

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

#define ISDIRTY(b)	(!lmfs_isclean(b))
#define ISCLEAN(b)	(lmfs_isclean(b))

#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`

Move primary cache code to libminixfs. Add primary cache management feature to libminixfs as mfs and ext2 currently do separately, remove cache code from mfs and ext2, and make them use the libminixfs interface. This makes all fields of the buf struct private to libminixfs and FS clients aren't supposed to access them at all. Only the opaque 'void *data' field (the FS block contents, used to be called bp) is to be accessed by the FS client. The main purpose is to implement the interface to the 2ndary vm cache just once, get rid of some code duplication, and add a little abstraction to reduce the code inertia of the whole caching business. Some minor sanity checking and prohibition done by mfs in this code as removed from the generic primary cache code as a result: - checking all inodes are not in use when allocating/resizing the cache - checking readonly filesystems aren't written to - checking the superblock isn't written to on mounted filesystems The minixfslib code relies on fs_blockstats() in the client filesystem to return some FS usage information. 2012-10-16 17:40:39 +02:00			`#define MARKDIRTY(b) do { if(superblock.s_dev == lmfs_dev(b) && superblock.s_rd_only) { printf("%s:%d: dirty block on rofs! ", __FILE__, __LINE__); util_stacktrace(); } else { lmfs_markdirty(b); } } while(0)`
			`#define MARKCLEAN(b) lmfs_markclean(b)`
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
Move primary cache code to libminixfs. Add primary cache management feature to libminixfs as mfs and ext2 currently do separately, remove cache code from mfs and ext2, and make them use the libminixfs interface. This makes all fields of the buf struct private to libminixfs and FS clients aren't supposed to access them at all. Only the opaque 'void *data' field (the FS block contents, used to be called bp) is to be accessed by the FS client. The main purpose is to implement the interface to the 2ndary vm cache just once, get rid of some code duplication, and add a little abstraction to reduce the code inertia of the whole caching business. Some minor sanity checking and prohibition done by mfs in this code as removed from the generic primary cache code as a result: - checking all inodes are not in use when allocating/resizing the cache - checking readonly filesystems aren't written to - checking the superblock isn't written to on mounted filesystems The minixfslib code relies on fs_blockstats() in the client filesystem to return some FS usage information. 2012-10-16 17:40:39 +02:00			`#define ISDIRTY(b) (!lmfs_isclean(b))`
			`#define ISCLEAN(b) (lmfs_isclean(b))`
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`