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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-01-08 16:24:38 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-01-08 16:24:38 +1100 |
| commit | 24f030175d30f019be41766cdf88c2ff03de19ff (patch) | |
| tree | 354232a84e82d5a721ed7b1a9af580ff2a59be8f /fs/direct-io.c | |
| parent | 4aa12f7b927c3cac0e0cf3503642597527d0ece0 (diff) | |
| parent | 9e42d0cf5020aaf217433cad1a224745241d212a (diff) | |
Merge commit 'origin/master' into next
Diffstat (limited to 'fs/direct-io.c')
| -rw-r--r-- | fs/direct-io.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/direct-io.c b/fs/direct-io.c index af0558dbe8b7..b6d43908ff7a 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -1209,6 +1209,19 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, retval = direct_io_worker(rw, iocb, inode, iov, offset, nr_segs, blkbits, get_block, end_io, dio); + /* + * In case of error extending write may have instantiated a few + * blocks outside i_size. Trim these off again for DIO_LOCKING. + * NOTE: DIO_NO_LOCK/DIO_OWN_LOCK callers have to handle this by + * it's own meaner. + */ + if (unlikely(retval < 0 && (rw & WRITE))) { + loff_t isize = i_size_read(inode); + + if (end > isize && dio_lock_type == DIO_LOCKING) + vmtruncate(inode, isize); + } + if (rw == READ && dio_lock_type == DIO_LOCKING) release_i_mutex = 0; |