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authorNathan Scott <nathans@sgi.com>2006-03-30 22:08:59 -0500
committerNathan Scott <nathans@sgi.com>2006-03-30 22:08:59 -0500
commit1b895840ce93fd2d150a86c800a3085eaab4eb9e (patch)
tree2f1c664ca2f948ec8c47f2c66e03cb21f2b9a45c
parent3bbcc8e3976f8bba2fd607c8850d7dfe7e332fda (diff)
[XFS] Provide XFS support for the splice syscall.
Signed-off-by: Nathan Scott <nathans@sgi.com>
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c113
-rw-r--r--fs/xfs/linux-2.6/xfs_linux.h1
-rw-r--r--fs/xfs/linux-2.6/xfs_lrw.c120
-rw-r--r--fs/xfs/linux-2.6/xfs_lrw.h11
-rw-r--r--fs/xfs/linux-2.6/xfs_vnode.h12
-rw-r--r--fs/xfs/xfs_vnodeops.c4
6 files changed, 199 insertions, 62 deletions
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 85997b1205f5..ae4c4754ed31 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -69,7 +69,6 @@ __xfs_file_read(
69 return rval; 69 return rval;
70} 70}
71 71
72
73STATIC ssize_t 72STATIC ssize_t
74xfs_file_aio_read( 73xfs_file_aio_read(
75 struct kiocb *iocb, 74 struct kiocb *iocb,
@@ -90,7 +89,6 @@ xfs_file_aio_read_invis(
90 return __xfs_file_read(iocb, buf, IO_ISAIO|IO_INVIS, count, pos); 89 return __xfs_file_read(iocb, buf, IO_ISAIO|IO_INVIS, count, pos);
91} 90}
92 91
93
94STATIC inline ssize_t 92STATIC inline ssize_t
95__xfs_file_write( 93__xfs_file_write(
96 struct kiocb *iocb, 94 struct kiocb *iocb,
@@ -113,7 +111,6 @@ __xfs_file_write(
113 return rval; 111 return rval;
114} 112}
115 113
116
117STATIC ssize_t 114STATIC ssize_t
118xfs_file_aio_write( 115xfs_file_aio_write(
119 struct kiocb *iocb, 116 struct kiocb *iocb,
@@ -134,7 +131,6 @@ xfs_file_aio_write_invis(
134 return __xfs_file_write(iocb, buf, IO_ISAIO|IO_INVIS, count, pos); 131 return __xfs_file_write(iocb, buf, IO_ISAIO|IO_INVIS, count, pos);
135} 132}
136 133
137
138STATIC inline ssize_t 134STATIC inline ssize_t
139__xfs_file_readv( 135__xfs_file_readv(
140 struct file *file, 136 struct file *file,
@@ -179,7 +175,6 @@ xfs_file_readv_invis(
179 return __xfs_file_readv(file, iov, IO_INVIS, nr_segs, ppos); 175 return __xfs_file_readv(file, iov, IO_INVIS, nr_segs, ppos);
180} 176}
181 177
182
183STATIC inline ssize_t 178STATIC inline ssize_t
184__xfs_file_writev( 179__xfs_file_writev(
185 struct file *file, 180 struct file *file,
@@ -204,7 +199,6 @@ __xfs_file_writev(
204 return rval; 199 return rval;
205} 200}
206 201
207
208STATIC ssize_t 202STATIC ssize_t
209xfs_file_writev( 203xfs_file_writev(
210 struct file *file, 204 struct file *file,
@@ -228,7 +222,7 @@ xfs_file_writev_invis(
228STATIC ssize_t 222STATIC ssize_t
229xfs_file_sendfile( 223xfs_file_sendfile(
230 struct file *filp, 224 struct file *filp,
231 loff_t *ppos, 225 loff_t *pos,
232 size_t count, 226 size_t count,
233 read_actor_t actor, 227 read_actor_t actor,
234 void *target) 228 void *target)
@@ -236,10 +230,80 @@ xfs_file_sendfile(
236 vnode_t *vp = vn_from_inode(filp->f_dentry->d_inode); 230 vnode_t *vp = vn_from_inode(filp->f_dentry->d_inode);
237 ssize_t rval; 231 ssize_t rval;
238 232
239 VOP_SENDFILE(vp, filp, ppos, 0, count, actor, target, NULL, rval); 233 VOP_SENDFILE(vp, filp, pos, 0, count, actor, target, NULL, rval);
240 return rval; 234 return rval;
241} 235}
242 236
237STATIC ssize_t
238xfs_file_sendfile_invis(
239 struct file *filp,
240 loff_t *pos,
241 size_t count,
242 read_actor_t actor,
243 void *target)
244{
245 vnode_t *vp = vn_from_inode(filp->f_dentry->d_inode);
246 ssize_t rval;
247
248 VOP_SENDFILE(vp, filp, pos, IO_INVIS, count, actor, target, NULL, rval);
249 return rval;
250}
251
252STATIC ssize_t
253xfs_file_splice_read(
254 struct file *infilp,
255 struct inode *pipe,
256 size_t len,
257 unsigned int flags)
258{
259 vnode_t *vp = vn_from_inode(infilp->f_dentry->d_inode);
260 ssize_t rval;
261
262 VOP_SPLICE_READ(vp, infilp, pipe, len, flags, 0, NULL, rval);
263 return rval;
264}
265
266STATIC ssize_t
267xfs_file_splice_read_invis(
268 struct file *infilp,
269 struct inode *pipe,
270 size_t len,
271 unsigned int flags)
272{
273 vnode_t *vp = vn_from_inode(infilp->f_dentry->d_inode);
274 ssize_t rval;
275
276 VOP_SPLICE_READ(vp, infilp, pipe, len, flags, IO_INVIS, NULL, rval);
277 return rval;
278}
279
280STATIC ssize_t
281xfs_file_splice_write(
282 struct inode *pipe,
283 struct file *outfilp,
284 size_t len,
285 unsigned int flags)
286{
287 vnode_t *vp = vn_from_inode(outfilp->f_dentry->d_inode);
288 ssize_t rval;
289
290 VOP_SPLICE_WRITE(vp, pipe, outfilp, len, flags, 0, NULL, rval);
291 return rval;
292}
293
294STATIC ssize_t
295xfs_file_splice_write_invis(
296 struct inode *pipe,
297 struct file *outfilp,
298 size_t len,
299 unsigned int flags)
300{
301 vnode_t *vp = vn_from_inode(outfilp->f_dentry->d_inode);
302 ssize_t rval;
303
304 VOP_SPLICE_WRITE(vp, pipe, outfilp, len, flags, IO_INVIS, NULL, rval);
305 return rval;
306}
243 307
244STATIC int 308STATIC int
245xfs_file_open( 309xfs_file_open(
@@ -251,13 +315,10 @@ xfs_file_open(
251 315
252 if (!(filp->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS) 316 if (!(filp->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS)
253 return -EFBIG; 317 return -EFBIG;
254
255 ASSERT(vp);
256 VOP_OPEN(vp, NULL, error); 318 VOP_OPEN(vp, NULL, error);
257 return -error; 319 return -error;
258} 320}
259 321
260
261STATIC int 322STATIC int
262xfs_file_release( 323xfs_file_release(
263 struct inode *inode, 324 struct inode *inode,
@@ -271,7 +332,6 @@ xfs_file_release(
271 return -error; 332 return -error;
272} 333}
273 334
274
275STATIC int 335STATIC int
276xfs_file_fsync( 336xfs_file_fsync(
277 struct file *filp, 337 struct file *filp,
@@ -285,21 +345,11 @@ xfs_file_fsync(
285 345
286 if (datasync) 346 if (datasync)
287 flags |= FSYNC_DATA; 347 flags |= FSYNC_DATA;
288
289 ASSERT(vp);
290 VOP_FSYNC(vp, flags, NULL, (xfs_off_t)0, (xfs_off_t)-1, error); 348 VOP_FSYNC(vp, flags, NULL, (xfs_off_t)0, (xfs_off_t)-1, error);
291 return -error; 349 return -error;
292} 350}
293 351
294/*
295 * xfs_file_readdir maps to VOP_READDIR().
296 * We need to build a uio, cred, ...
297 */
298
299#define nextdp(dp) ((struct xfs_dirent *)((char *)(dp) + (dp)->d_reclen))
300
301#ifdef CONFIG_XFS_DMAPI 352#ifdef CONFIG_XFS_DMAPI
302
303STATIC struct page * 353STATIC struct page *
304xfs_vm_nopage( 354xfs_vm_nopage(
305 struct vm_area_struct *area, 355 struct vm_area_struct *area,
@@ -319,10 +369,8 @@ xfs_vm_nopage(
319 369
320 return filemap_nopage(area, address, type); 370 return filemap_nopage(area, address, type);
321} 371}
322
323#endif /* CONFIG_XFS_DMAPI */ 372#endif /* CONFIG_XFS_DMAPI */
324 373
325
326STATIC int 374STATIC int
327xfs_file_readdir( 375xfs_file_readdir(
328 struct file *filp, 376 struct file *filp,
@@ -330,7 +378,7 @@ xfs_file_readdir(
330 filldir_t filldir) 378 filldir_t filldir)
331{ 379{
332 int error = 0; 380 int error = 0;
333 vnode_t *vp; 381 vnode_t *vp = vn_from_inode(filp->f_dentry->d_inode);
334 uio_t uio; 382 uio_t uio;
335 iovec_t iov; 383 iovec_t iov;
336 int eof = 0; 384 int eof = 0;
@@ -340,9 +388,6 @@ xfs_file_readdir(
340 xfs_off_t start_offset, curr_offset; 388 xfs_off_t start_offset, curr_offset;
341 xfs_dirent_t *dbp = NULL; 389 xfs_dirent_t *dbp = NULL;
342 390
343 vp = vn_from_inode(filp->f_dentry->d_inode);
344 ASSERT(vp);
345
346 /* Try fairly hard to get memory */ 391 /* Try fairly hard to get memory */
347 do { 392 do {
348 if ((read_buf = (caddr_t)kmalloc(rlen, GFP_KERNEL))) 393 if ((read_buf = (caddr_t)kmalloc(rlen, GFP_KERNEL)))
@@ -387,7 +432,7 @@ xfs_file_readdir(
387 } 432 }
388 size -= dbp->d_reclen; 433 size -= dbp->d_reclen;
389 curr_offset = (loff_t)dbp->d_off /* & 0x7fffffff */; 434 curr_offset = (loff_t)dbp->d_off /* & 0x7fffffff */;
390 dbp = nextdp(dbp); 435 dbp = (xfs_dirent_t *)((char *)dbp + dbp->d_reclen);
391 } 436 }
392 } 437 }
393done: 438done:
@@ -402,7 +447,6 @@ done:
402 return -error; 447 return -error;
403} 448}
404 449
405
406STATIC int 450STATIC int
407xfs_file_mmap( 451xfs_file_mmap(
408 struct file *filp, 452 struct file *filp,
@@ -457,11 +501,10 @@ xfs_file_ioctl_invis(
457 unsigned int cmd, 501 unsigned int cmd,
458 unsigned long arg) 502 unsigned long arg)
459{ 503{
460 int error;
461 struct inode *inode = filp->f_dentry->d_inode; 504 struct inode *inode = filp->f_dentry->d_inode;
462 vnode_t *vp = vn_from_inode(inode); 505 vnode_t *vp = vn_from_inode(inode);
506 int error;
463 507
464 ASSERT(vp);
465 VOP_IOCTL(vp, inode, filp, IO_INVIS, cmd, (void __user *)arg, error); 508 VOP_IOCTL(vp, inode, filp, IO_INVIS, cmd, (void __user *)arg, error);
466 VMODIFY(vp); 509 VMODIFY(vp);
467 510
@@ -537,6 +580,8 @@ const struct file_operations xfs_file_operations = {
537 .aio_read = xfs_file_aio_read, 580 .aio_read = xfs_file_aio_read,
538 .aio_write = xfs_file_aio_write, 581 .aio_write = xfs_file_aio_write,
539 .sendfile = xfs_file_sendfile, 582 .sendfile = xfs_file_sendfile,
583 .splice_read = xfs_file_splice_read,
584 .splice_write = xfs_file_splice_write,
540 .unlocked_ioctl = xfs_file_ioctl, 585 .unlocked_ioctl = xfs_file_ioctl,
541#ifdef CONFIG_COMPAT 586#ifdef CONFIG_COMPAT
542 .compat_ioctl = xfs_file_compat_ioctl, 587 .compat_ioctl = xfs_file_compat_ioctl,
@@ -558,7 +603,9 @@ const struct file_operations xfs_invis_file_operations = {
558 .writev = xfs_file_writev_invis, 603 .writev = xfs_file_writev_invis,
559 .aio_read = xfs_file_aio_read_invis, 604 .aio_read = xfs_file_aio_read_invis,
560 .aio_write = xfs_file_aio_write_invis, 605 .aio_write = xfs_file_aio_write_invis,
561 .sendfile = xfs_file_sendfile, 606 .sendfile = xfs_file_sendfile_invis,
607 .splice_read = xfs_file_splice_read_invis,
608 .splice_write = xfs_file_splice_write_invis,
562 .unlocked_ioctl = xfs_file_ioctl_invis, 609 .unlocked_ioctl = xfs_file_ioctl_invis,
563#ifdef CONFIG_COMPAT 610#ifdef CONFIG_COMPAT
564 .compat_ioctl = xfs_file_compat_invis_ioctl, 611 .compat_ioctl = xfs_file_compat_invis_ioctl,
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index 1fe09f2d6519..e9fe43d74768 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -103,6 +103,7 @@
103 */ 103 */
104#undef HAVE_REFCACHE /* reference cache not needed for NFS in 2.6 */ 104#undef HAVE_REFCACHE /* reference cache not needed for NFS in 2.6 */
105#define HAVE_SENDFILE /* sendfile(2) exists in 2.6, but not in 2.4 */ 105#define HAVE_SENDFILE /* sendfile(2) exists in 2.6, but not in 2.4 */
106#define HAVE_SPLICE /* a splice(2) exists in 2.6, but not in 2.4 */
106#ifdef CONFIG_SMP 107#ifdef CONFIG_SMP
107#define HAVE_PERCPU_SB /* per cpu superblock counters are a 2.6 feature */ 108#define HAVE_PERCPU_SB /* per cpu superblock counters are a 2.6 feature */
108#else 109#else
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 84ddf1893894..90cd314acbaa 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -301,36 +301,23 @@ xfs_sendfile(
301 void *target, 301 void *target,
302 cred_t *credp) 302 cred_t *credp)
303{ 303{
304 xfs_inode_t *ip = XFS_BHVTOI(bdp);
305 xfs_mount_t *mp = ip->i_mount;
304 ssize_t ret; 306 ssize_t ret;
305 xfs_fsize_t n;
306 xfs_inode_t *ip;
307 xfs_mount_t *mp;
308 vnode_t *vp;
309
310 ip = XFS_BHVTOI(bdp);
311 vp = BHV_TO_VNODE(bdp);
312 mp = ip->i_mount;
313 307
314 XFS_STATS_INC(xs_read_calls); 308 XFS_STATS_INC(xs_read_calls);
315 309 if (XFS_FORCED_SHUTDOWN(mp))
316 n = XFS_MAXIOFFSET(mp) - *offset;
317 if ((n <= 0) || (count == 0))
318 return 0;
319
320 if (n < count)
321 count = n;
322
323 if (XFS_FORCED_SHUTDOWN(ip->i_mount))
324 return -EIO; 310 return -EIO;
325 311
326 xfs_ilock(ip, XFS_IOLOCK_SHARED); 312 xfs_ilock(ip, XFS_IOLOCK_SHARED);
327 313
328 if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ) && 314 if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_READ) &&
329 (!(ioflags & IO_INVIS))) { 315 (!(ioflags & IO_INVIS))) {
330 vrwlock_t locktype = VRWLOCK_READ; 316 vrwlock_t locktype = VRWLOCK_READ;
331 int error; 317 int error;
332 318
333 error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp), *offset, count, 319 error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp),
320 *offset, count,
334 FILP_DELAY_FLAG(filp), &locktype); 321 FILP_DELAY_FLAG(filp), &locktype);
335 if (error) { 322 if (error) {
336 xfs_iunlock(ip, XFS_IOLOCK_SHARED); 323 xfs_iunlock(ip, XFS_IOLOCK_SHARED);
@@ -340,12 +327,96 @@ xfs_sendfile(
340 xfs_rw_enter_trace(XFS_SENDFILE_ENTER, &ip->i_iocore, 327 xfs_rw_enter_trace(XFS_SENDFILE_ENTER, &ip->i_iocore,
341 (void *)(unsigned long)target, count, *offset, ioflags); 328 (void *)(unsigned long)target, count, *offset, ioflags);
342 ret = generic_file_sendfile(filp, offset, count, actor, target); 329 ret = generic_file_sendfile(filp, offset, count, actor, target);
330 if (ret > 0)
331 XFS_STATS_ADD(xs_read_bytes, ret);
343 332
344 xfs_iunlock(ip, XFS_IOLOCK_SHARED); 333 xfs_iunlock(ip, XFS_IOLOCK_SHARED);
334 return ret;
335}
345 336
337ssize_t
338xfs_splice_read(
339 bhv_desc_t *bdp,
340 struct file *infilp,
341 struct inode *pipe,
342 size_t count,
343 int flags,
344 int ioflags,
345 cred_t *credp)
346{
347 xfs_inode_t *ip = XFS_BHVTOI(bdp);
348 xfs_mount_t *mp = ip->i_mount;
349 ssize_t ret;
350
351 XFS_STATS_INC(xs_read_calls);
352 if (XFS_FORCED_SHUTDOWN(ip->i_mount))
353 return -EIO;
354
355 xfs_ilock(ip, XFS_IOLOCK_SHARED);
356
357 if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_READ) &&
358 (!(ioflags & IO_INVIS))) {
359 vrwlock_t locktype = VRWLOCK_READ;
360 int error;
361
362 error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp),
363 infilp->f_pos, count,
364 FILP_DELAY_FLAG(infilp), &locktype);
365 if (error) {
366 xfs_iunlock(ip, XFS_IOLOCK_SHARED);
367 return -error;
368 }
369 }
370 xfs_rw_enter_trace(XFS_SPLICE_READ_ENTER, &ip->i_iocore,
371 pipe, count, infilp->f_pos, ioflags);
372 ret = generic_file_splice_read(infilp, pipe, count, flags);
346 if (ret > 0) 373 if (ret > 0)
347 XFS_STATS_ADD(xs_read_bytes, ret); 374 XFS_STATS_ADD(xs_read_bytes, ret);
348 375
376 xfs_iunlock(ip, XFS_IOLOCK_SHARED);
377 return ret;
378}
379
380ssize_t
381xfs_splice_write(
382 bhv_desc_t *bdp,
383 struct inode *pipe,
384 struct file *outfilp,
385 size_t count,
386 int flags,
387 int ioflags,
388 cred_t *credp)
389{
390 xfs_inode_t *ip = XFS_BHVTOI(bdp);
391 xfs_mount_t *mp = ip->i_mount;
392 ssize_t ret;
393
394 XFS_STATS_INC(xs_write_calls);
395 if (XFS_FORCED_SHUTDOWN(ip->i_mount))
396 return -EIO;
397
398 xfs_ilock(ip, XFS_IOLOCK_EXCL);
399
400 if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_WRITE) &&
401 (!(ioflags & IO_INVIS))) {
402 vrwlock_t locktype = VRWLOCK_WRITE;
403 int error;
404
405 error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, BHV_TO_VNODE(bdp),
406 outfilp->f_pos, count,
407 FILP_DELAY_FLAG(outfilp), &locktype);
408 if (error) {
409 xfs_iunlock(ip, XFS_IOLOCK_EXCL);
410 return -error;
411 }
412 }
413 xfs_rw_enter_trace(XFS_SPLICE_WRITE_ENTER, &ip->i_iocore,
414 pipe, count, outfilp->f_pos, ioflags);
415 ret = generic_file_splice_write(pipe, outfilp, count, flags);
416 if (ret > 0)
417 XFS_STATS_ADD(xs_write_bytes, ret);
418
419 xfs_iunlock(ip, XFS_IOLOCK_EXCL);
349 return ret; 420 return ret;
350} 421}
351 422
@@ -363,7 +434,7 @@ xfs_zero_last_block(
363 xfs_fsize_t end_size) 434 xfs_fsize_t end_size)
364{ 435{
365 xfs_fileoff_t last_fsb; 436 xfs_fileoff_t last_fsb;
366 xfs_mount_t *mp; 437 xfs_mount_t *mp = io->io_mount;
367 int nimaps; 438 int nimaps;
368 int zero_offset; 439 int zero_offset;
369 int zero_len; 440 int zero_len;
@@ -373,8 +444,6 @@ xfs_zero_last_block(
373 444
374 ASSERT(ismrlocked(io->io_lock, MR_UPDATE) != 0); 445 ASSERT(ismrlocked(io->io_lock, MR_UPDATE) != 0);
375 446
376 mp = io->io_mount;
377
378 zero_offset = XFS_B_FSB_OFFSET(mp, isize); 447 zero_offset = XFS_B_FSB_OFFSET(mp, isize);
379 if (zero_offset == 0) { 448 if (zero_offset == 0) {
380 /* 449 /*
@@ -405,10 +474,9 @@ xfs_zero_last_block(
405 * don't deadlock when the buffer cache calls back to us. 474 * don't deadlock when the buffer cache calls back to us.
406 */ 475 */
407 XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD); 476 XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD);
408 loff = XFS_FSB_TO_B(mp, last_fsb);
409 477
478 loff = XFS_FSB_TO_B(mp, last_fsb);
410 zero_len = mp->m_sb.sb_blocksize - zero_offset; 479 zero_len = mp->m_sb.sb_blocksize - zero_offset;
411
412 error = xfs_iozero(ip, loff + zero_offset, zero_len, end_size); 480 error = xfs_iozero(ip, loff + zero_offset, zero_len, end_size);
413 481
414 XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD); 482 XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
@@ -441,7 +509,7 @@ xfs_zero_eof(
441 xfs_fileoff_t zero_count_fsb; 509 xfs_fileoff_t zero_count_fsb;
442 xfs_fileoff_t last_fsb; 510 xfs_fileoff_t last_fsb;
443 xfs_extlen_t buf_len_fsb; 511 xfs_extlen_t buf_len_fsb;
444 xfs_mount_t *mp; 512 xfs_mount_t *mp = io->io_mount;
445 int nimaps; 513 int nimaps;
446 int error = 0; 514 int error = 0;
447 xfs_bmbt_irec_t imap; 515 xfs_bmbt_irec_t imap;
@@ -450,8 +518,6 @@ xfs_zero_eof(
450 ASSERT(ismrlocked(io->io_iolock, MR_UPDATE)); 518 ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
451 ASSERT(offset > isize); 519 ASSERT(offset > isize);
452 520
453 mp = io->io_mount;
454
455 /* 521 /*
456 * First handle zeroing the block on which isize resides. 522 * First handle zeroing the block on which isize resides.
457 * We only zero a part of that block so it is handled specially. 523 * We only zero a part of that block so it is handled specially.
diff --git a/fs/xfs/linux-2.6/xfs_lrw.h b/fs/xfs/linux-2.6/xfs_lrw.h
index 38864a88d42d..eaa5659713fb 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.h
+++ b/fs/xfs/linux-2.6/xfs_lrw.h
@@ -60,6 +60,8 @@ struct xfs_iomap;
60#define XFS_IOMAP_ALLOC_ENTER 25 60#define XFS_IOMAP_ALLOC_ENTER 25
61#define XFS_IOMAP_ALLOC_MAP 26 61#define XFS_IOMAP_ALLOC_MAP 26
62#define XFS_IOMAP_UNWRITTEN 27 62#define XFS_IOMAP_UNWRITTEN 27
63#define XFS_SPLICE_READ_ENTER 28
64#define XFS_SPLICE_WRITE_ENTER 29
63extern void xfs_rw_enter_trace(int, struct xfs_iocore *, 65extern void xfs_rw_enter_trace(int, struct xfs_iocore *,
64 void *, size_t, loff_t, int); 66 void *, size_t, loff_t, int);
65extern void xfs_inval_cached_trace(struct xfs_iocore *, 67extern void xfs_inval_cached_trace(struct xfs_iocore *,
@@ -78,6 +80,7 @@ extern int xfs_bmap(struct bhv_desc *, xfs_off_t, ssize_t, int,
78 struct xfs_iomap *, int *); 80 struct xfs_iomap *, int *);
79extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *); 81extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
80extern int xfs_bdstrat_cb(struct xfs_buf *); 82extern int xfs_bdstrat_cb(struct xfs_buf *);
83extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
81 84
82extern int xfs_zero_eof(struct vnode *, struct xfs_iocore *, xfs_off_t, 85extern int xfs_zero_eof(struct vnode *, struct xfs_iocore *, xfs_off_t,
83 xfs_fsize_t, xfs_fsize_t); 86 xfs_fsize_t, xfs_fsize_t);
@@ -90,7 +93,11 @@ extern ssize_t xfs_write(struct bhv_desc *, struct kiocb *,
90extern ssize_t xfs_sendfile(struct bhv_desc *, struct file *, 93extern ssize_t xfs_sendfile(struct bhv_desc *, struct file *,
91 loff_t *, int, size_t, read_actor_t, 94 loff_t *, int, size_t, read_actor_t,
92 void *, struct cred *); 95 void *, struct cred *);
93 96extern ssize_t xfs_splice_read(struct bhv_desc *, struct file *,
94extern int xfs_dev_is_read_only(struct xfs_mount *, char *); 97 struct inode *, size_t, int, int,
98 struct cred *);
99extern ssize_t xfs_splice_write(struct bhv_desc *, struct inode *,
100 struct file *, size_t, int, int,
101 struct cred *);
95 102
96#endif /* __XFS_LRW_H__ */ 103#endif /* __XFS_LRW_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index 06f5845e9568..6f1c79a28f8b 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -173,6 +173,12 @@ typedef ssize_t (*vop_write_t)(bhv_desc_t *, struct kiocb *,
173typedef ssize_t (*vop_sendfile_t)(bhv_desc_t *, struct file *, 173typedef ssize_t (*vop_sendfile_t)(bhv_desc_t *, struct file *,
174 loff_t *, int, size_t, read_actor_t, 174 loff_t *, int, size_t, read_actor_t,
175 void *, struct cred *); 175 void *, struct cred *);
176typedef ssize_t (*vop_splice_read_t)(bhv_desc_t *, struct file *,
177 struct inode *, size_t, int, int,
178 struct cred *);
179typedef ssize_t (*vop_splice_write_t)(bhv_desc_t *, struct inode *,
180 struct file *, size_t, int, int,
181 struct cred *);
176typedef int (*vop_ioctl_t)(bhv_desc_t *, struct inode *, struct file *, 182typedef int (*vop_ioctl_t)(bhv_desc_t *, struct inode *, struct file *,
177 int, unsigned int, void __user *); 183 int, unsigned int, void __user *);
178typedef int (*vop_getattr_t)(bhv_desc_t *, struct vattr *, int, 184typedef int (*vop_getattr_t)(bhv_desc_t *, struct vattr *, int,
@@ -231,6 +237,8 @@ typedef struct vnodeops {
231 vop_read_t vop_read; 237 vop_read_t vop_read;
232 vop_write_t vop_write; 238 vop_write_t vop_write;
233 vop_sendfile_t vop_sendfile; 239 vop_sendfile_t vop_sendfile;
240 vop_splice_read_t vop_splice_read;
241 vop_splice_write_t vop_splice_write;
234 vop_ioctl_t vop_ioctl; 242 vop_ioctl_t vop_ioctl;
235 vop_getattr_t vop_getattr; 243 vop_getattr_t vop_getattr;
236 vop_setattr_t vop_setattr; 244 vop_setattr_t vop_setattr;
@@ -276,6 +284,10 @@ typedef struct vnodeops {
276 rv = _VOP_(vop_write, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr) 284 rv = _VOP_(vop_write, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr)
277#define VOP_SENDFILE(vp,f,off,ioflags,cnt,act,targ,cr,rv) \ 285#define VOP_SENDFILE(vp,f,off,ioflags,cnt,act,targ,cr,rv) \
278 rv = _VOP_(vop_sendfile, vp)((vp)->v_fbhv,f,off,ioflags,cnt,act,targ,cr) 286 rv = _VOP_(vop_sendfile, vp)((vp)->v_fbhv,f,off,ioflags,cnt,act,targ,cr)
287#define VOP_SPLICE_READ(vp,f,pipe,cnt,fl,iofl,cr,rv) \
288 rv = _VOP_(vop_splice_read, vp)((vp)->v_fbhv,f,pipe,cnt,fl,iofl,cr)
289#define VOP_SPLICE_WRITE(vp,f,pipe,cnt,fl,iofl,cr,rv) \
290 rv = _VOP_(vop_splice_write, vp)((vp)->v_fbhv,f,pipe,cnt,fl,iofl,cr)
279#define VOP_BMAP(vp,of,sz,rw,b,n,rv) \ 291#define VOP_BMAP(vp,of,sz,rw,b,n,rv) \
280 rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n) 292 rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n)
281#define VOP_OPEN(vp, cr, rv) \ 293#define VOP_OPEN(vp, cr, rv) \
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index de49601919c1..fa71b305ba5c 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -4649,6 +4649,10 @@ vnodeops_t xfs_vnodeops = {
4649#ifdef HAVE_SENDFILE 4649#ifdef HAVE_SENDFILE
4650 .vop_sendfile = xfs_sendfile, 4650 .vop_sendfile = xfs_sendfile,
4651#endif 4651#endif
4652#ifdef HAVE_SPLICE
4653 .vop_splice_read = xfs_splice_read,
4654 .vop_splice_write = xfs_splice_write,
4655#endif
4652 .vop_write = xfs_write, 4656 .vop_write = xfs_write,
4653 .vop_ioctl = xfs_ioctl, 4657 .vop_ioctl = xfs_ioctl,
4654 .vop_getattr = xfs_getattr, 4658 .vop_getattr = xfs_getattr,