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sys/fs/fuse/fuse_vnops.c
| Show First 20 Lines • Show All 943 Lines • ▼ Show 20 Lines | if (flags & ISDOTDOT) { | ||||
| } | } | ||||
| if (err) | if (err) | ||||
| goto out; | goto out; | ||||
| *vpp = vp; | *vpp = vp; | ||||
| } else if (nid == VTOI(dvp)) { | } else if (nid == VTOI(dvp)) { | ||||
| vref(dvp); | vref(dvp); | ||||
| *vpp = dvp; | *vpp = dvp; | ||||
| } else { | } else { | ||||
| struct fuse_vnode_data *fvdat; | |||||
| err = fuse_vnode_get(vnode_mount(dvp), feo, nid, dvp, | err = fuse_vnode_get(vnode_mount(dvp), feo, nid, dvp, | ||||
| &vp, cnp, IFTOVT(fattr->mode)); | &vp, cnp, IFTOVT(fattr->mode)); | ||||
| if (err) { | if (err) { | ||||
| goto out; | goto out; | ||||
| } | } | ||||
| fuse_vnode_setparent(vp, dvp); | fuse_vnode_setparent(vp, dvp); | ||||
| /* | |||||
| * In the case where we are looking up a FUSE node | |||||
| * represented by an existing cached vnode, and the | |||||
| * true size reported by FUSE_LOOKUP doesn't match | |||||
| * the vnode's cached size, fix the vnode cache to | |||||
| * match the real object size. | |||||
| * | |||||
| * This can occur via FUSE distributed filesystems, | |||||
| * irregular files, etc. | |||||
| */ | |||||
| fvdat = VTOFUD(vp); | |||||
| if (vnode_isreg(vp) && | |||||
| fattr->size != fvdat->filesize) { | |||||
| /* | |||||
| * The FN_SIZECHANGE flag reflects a dirty | |||||
| * append. If userspace lets us know our cache | |||||
| * is invalid, that write was lost. (Dirty | |||||
| * writes that do not cause append are also | |||||
| * lost, but we don't detect them here.) | |||||
| * | |||||
| * XXX: Maybe disable WB caching on this mount. | |||||
| */ | |||||
| if (fvdat->flag & FN_SIZECHANGE) | |||||
| printf("%s: WB cache incoherent on " | |||||
| "%s!\n", __func__, | |||||
| vnode_mount(vp)->mnt_stat.f_mntonname); | |||||
| (void)fuse_vnode_setsize(vp, cred, fattr->size); | |||||
| fvdat->flag &= ~FN_SIZECHANGE; | |||||
| } | |||||
| *vpp = vp; | *vpp = vp; | ||||
| } | } | ||||
| if (op == FUSE_GETATTR) { | if (op == FUSE_GETATTR) { | ||||
| cache_attrs(*vpp, (struct fuse_attr_out *)fdi.answ, | cache_attrs(*vpp, (struct fuse_attr_out *)fdi.answ, | ||||
| NULL); | NULL); | ||||
| } else { | } else { | ||||
| cache_attrs(*vpp, (struct fuse_entry_out *)fdi.answ, | cache_attrs(*vpp, (struct fuse_entry_out *)fdi.answ, | ||||
| ▲ Show 20 Lines • Show All 1,421 Lines • Show Last 20 Lines | |||||