diff options
Diffstat (limited to 'fs/exofs')
| -rw-r--r-- | fs/exofs/inode.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c index 9a5ed30b8a35..3b2ee72aecbe 100644 --- a/fs/exofs/inode.c +++ b/fs/exofs/inode.c @@ -574,8 +574,16 @@ static struct page *__r4w_get_page(void *priv, u64 offset, bool *uptodate) if (!pcol->that_locked_page || (pcol->that_locked_page->index != index)) { - struct page *page = find_get_page(pcol->inode->i_mapping, index); + struct page *page; + loff_t i_size = i_size_read(pcol->inode); + if (offset >= i_size) { + *uptodate = true; + EXOFS_DBGMSG("offset >= i_size index=0x%lx\n", index); + return ZERO_PAGE(0); + } + + page = find_get_page(pcol->inode->i_mapping, index); if (!page) { page = find_or_create_page(pcol->inode->i_mapping, index, GFP_NOFS); @@ -604,12 +612,13 @@ static void __r4w_put_page(void *priv, struct page *page) { struct page_collect *pcol = priv; - if (pcol->that_locked_page != page) { + if ((pcol->that_locked_page != page) && (ZERO_PAGE(0) != page)) { EXOFS_DBGMSG("index=0x%lx\n", page->index); page_cache_release(page); return; } - EXOFS_DBGMSG("that_locked_page index=0x%lx\n", page->index); + EXOFS_DBGMSG("that_locked_page index=0x%lx\n", + ZERO_PAGE(0) == page ? -1 : page->index); } static const struct _ore_r4w_op _r4w_op = { |