6bbcab3ec4
- Remove unused includes. - Add include guards to headers. - Use unsigned variables in case they're never going to hold a negative value. This causes GCC's complaints to disappear and should make flexelint a lot happier, too. - Make functions private when they're used only within a module. - Remove unused variables. - Add casts where appropriate.
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
#include "fs.h"
|
|
#include <assert.h>
|
|
#include <minix/vfsif.h>
|
|
#include "inode.h"
|
|
|
|
|
|
/*===========================================================================*
|
|
* fs_sync *
|
|
*===========================================================================*/
|
|
PUBLIC int fs_sync()
|
|
{
|
|
/* Perform the sync() system call. Flush all the tables.
|
|
* The order in which the various tables are flushed is critical. The
|
|
* blocks must be flushed last, since rw_inode() leaves its results in
|
|
* the block cache.
|
|
*/
|
|
struct inode *rip;
|
|
struct buf *bp;
|
|
|
|
assert(nr_bufs > 0);
|
|
assert(buf);
|
|
|
|
/* Write all the dirty inodes to the disk. */
|
|
for(rip = &inode[0]; rip < &inode[NR_INODES]; rip++)
|
|
if(rip->i_count > 0 && rip->i_dirt == DIRTY) rw_inode(rip, WRITING);
|
|
|
|
/* Write all the dirty blocks to the disk, one drive at a time. */
|
|
for(bp = &buf[0]; bp < &buf[nr_bufs]; bp++)
|
|
if(bp->b_dev != NO_DEV && bp->b_dirt == DIRTY)
|
|
flushall(bp->b_dev);
|
|
|
|
return(OK); /* sync() can't fail */
|
|
}
|
|
|
|
|
|
/*===========================================================================*
|
|
* fs_flush *
|
|
*===========================================================================*/
|
|
PUBLIC int fs_flush()
|
|
{
|
|
/* Flush the blocks of a device from the cache after writing any dirty blocks
|
|
* to disk.
|
|
*/
|
|
dev_t dev = (dev_t) fs_m_in.REQ_DEV;
|
|
if(dev == fs_dev) return(EBUSY);
|
|
|
|
flushall(dev);
|
|
invalidate(dev);
|
|
|
|
return(OK);
|
|
}
|
|
|