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-rw-r--r--fs/splice.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/fs/splice.c b/fs/splice.c
index aa5f6f60b305..399442179d89 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -379,13 +379,22 @@ __generic_file_splice_read(struct file *in, loff_t *ppos,
379 lock_page(page); 379 lock_page(page);
380 380
381 /* 381 /*
382 * page was truncated, stop here. if this isn't the 382 * Page was truncated, or invalidated by the
383 * first page, we'll just complete what we already 383 * filesystem. Redo the find/create, but this time the
384 * added 384 * page is kept locked, so there's no chance of another
385 * race with truncate/invalidate.
385 */ 386 */
386 if (!page->mapping) { 387 if (!page->mapping) {
387 unlock_page(page); 388 unlock_page(page);
388 break; 389 page = find_or_create_page(mapping, index,
390 mapping_gfp_mask(mapping));
391
392 if (!page) {
393 error = -ENOMEM;
394 break;
395 }
396 page_cache_release(pages[page_nr]);
397 pages[page_nr] = page;
389 } 398 }
390 /* 399 /*
391 * page was already under io and is now done, great 400 * page was already under io and is now done, great