Differential D5080 Diff 12715 sys/ufs/ffs/ffs_inode.c

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sys/ufs/ffs/ffs_inode.c

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#include <sys/param.h>		#include <sys/param.h>
#include <sys/systm.h>		#include <sys/systm.h>
#include <sys/bio.h>		#include <sys/bio.h>
#include <sys/buf.h>		#include <sys/buf.h>
#include <sys/malloc.h>		#include <sys/malloc.h>
#include <sys/mount.h>		#include <sys/mount.h>
#include <sys/proc.h>		#include <sys/proc.h>
		#include <sys/racct.h>
#include <sys/random.h>		#include <sys/random.h>
#include <sys/resourcevar.h>		#include <sys/resourcevar.h>
#include <sys/rwlock.h>		#include <sys/rwlock.h>
#include <sys/stat.h>		#include <sys/stat.h>
#include <sys/vmmeter.h>		#include <sys/vmmeter.h>
#include <sys/vnode.h>		#include <sys/vnode.h>

#include <vm/vm.h>		#include <vm/vm.h>
▲ Show 20 Lines • Show All 561 Lines • ▼ Show 20 Lines	# define BAP(ip, i) (((ip)->i_ump->um_fstype == UFS1) ? bap1[i] : bap2[i])
* double(triple) indirect before single(double) indirect, calls		* double(triple) indirect before single(double) indirect, calls
* to bmap on these blocks will fail. However, we already have		* to bmap on these blocks will fail. However, we already have
* the on disk address, so we have to set the b_blkno field		* the on disk address, so we have to set the b_blkno field
* explicitly instead of letting bread do everything for us.		* explicitly instead of letting bread do everything for us.
*/		*/
vp = ITOV(ip);		vp = ITOV(ip);
bp = getblk(vp, lbn, (int)fs->fs_bsize, 0, 0, 0);		bp = getblk(vp, lbn, (int)fs->fs_bsize, 0, 0, 0);
if ((bp->b_flags & B_CACHE) == 0) {		if ((bp->b_flags & B_CACHE) == 0) {
		#ifdef RACCT
		if (racct_enable) {
		PROC_LOCK(curproc);
		racct_add_buf(curproc, bp, 0);
		PROC_UNLOCK(curproc);
		}
		#endif /* RACCT */
curthread->td_ru.ru_inblock++; /* pay for read */		curthread->td_ru.ru_inblock++; /* pay for read */
bp->b_iocmd = BIO_READ;		bp->b_iocmd = BIO_READ;
bp->b_flags &= ~B_INVAL;		bp->b_flags &= ~B_INVAL;
bp->b_ioflags &= ~BIO_ERROR;		bp->b_ioflags &= ~BIO_ERROR;
if (bp->b_bcount > bp->b_bufsize)		if (bp->b_bcount > bp->b_bufsize)
panic("ffs_indirtrunc: bad buffer size");		panic("ffs_indirtrunc: bad buffer size");
bp->b_blkno = dbn;		bp->b_blkno = dbn;
vfs_busy_pages(bp, 0);		vfs_busy_pages(bp, 0);
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