diff options
Diffstat (limited to 'fs/sysv/itree.c')
| -rw-r--r-- | fs/sysv/itree.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c index f042eec464c2..9ca66276315e 100644 --- a/fs/sysv/itree.c +++ b/fs/sysv/itree.c @@ -459,20 +459,25 @@ static int sysv_readpage(struct file *file, struct page *page) return block_read_full_page(page,get_block); } -int __sysv_write_begin(struct file *file, struct address_space *mapping, - loff_t pos, unsigned len, unsigned flags, - struct page **pagep, void **fsdata) +int sysv_prepare_chunk(struct page *page, loff_t pos, unsigned len) { - return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata, - get_block); + return __block_write_begin(page, pos, len, get_block); } static int sysv_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata) { - *pagep = NULL; - return __sysv_write_begin(file, mapping, pos, len, flags, pagep, fsdata); + int ret; + + ret = block_write_begin(mapping, pos, len, flags, pagep, get_block); + if (unlikely(ret)) { + loff_t isize = mapping->host->i_size; + if (pos + len > isize) + vmtruncate(mapping->host, isize); + } + + return ret; } static sector_t sysv_bmap(struct address_space *mapping, sector_t block) |