int deupdat(struct denode *dep, int waitfor) { struct buf *bp; struct direntry *dirp; int error; struct timespec ts; if (DETOV(dep)->v_mount->mnt_flag & MNT_RDONLY) return (0); getnanotime(&ts); DETIMES(dep, &ts, &ts, &ts); if ((dep->de_flag & DE_MODIFIED) == 0) return (0); dep->de_flag &= ~DE_MODIFIED; if (dep->de_Attributes & ATTR_DIRECTORY) return (0); if (dep->de_refcnt <= 0) return (0); error = readde(dep, &bp, &dirp); if (error) return (error); DE_EXTERNALIZE(dirp, dep); if (waitfor) return (bwrite(bp)); else { bdwrite(bp); return (0); } }
static int msdosfs_updatede(struct denode *dep) { struct buf *bp; struct direntry *dirp; int error; dep->de_flag &= ~DE_MODIFIED; error = readde(dep, &bp, &dirp); if (error) return error; DE_EXTERNALIZE(dirp, dep); error = bwrite(bp); return error; }
int deupdat(struct denode *dep, int waitfor) { struct direntry dir; struct timespec ts; struct buf *bp; struct direntry *dirp; int error; if (DETOV(dep)->v_mount->mnt_flag & MNT_RDONLY) { dep->de_flag &= ~(DE_UPDATE | DE_CREATE | DE_ACCESS | DE_MODIFIED); return (0); } getnanotime(&ts); DETIMES(dep, &ts, &ts, &ts); if ((dep->de_flag & DE_MODIFIED) == 0 && waitfor == 0) return (0); dep->de_flag &= ~DE_MODIFIED; if (DETOV(dep)->v_vflag & VV_ROOT) return (EINVAL); if (dep->de_refcnt <= 0) return (0); error = readde(dep, &bp, &dirp); if (error) return (error); DE_EXTERNALIZE(&dir, dep); if (bcmp(dirp, &dir, sizeof(dir)) == 0) { if (waitfor == 0 || (bp->b_flags & B_DELWRI) == 0) { brelse(bp); return (0); } } else *dirp = dir; if ((DETOV(dep)->v_mount->mnt_flag & MNT_NOCLUSTERW) == 0) bp->b_flags |= B_CLUSTEROK; if (waitfor) error = bwrite(bp); else if (vm_page_count_severe() || buf_dirty_count_severe()) bawrite(bp); else bdwrite(bp); return (error); }