diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-11-15 09:50:38 +0100 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2009-11-15 09:50:41 +0100 |
commit | 39dc78b6510323848e3356452f7dab9499736978 (patch) | |
tree | cf8a8fede74e41b203fd00e3ccd21ead2e851442 /fs/ext4/inode.c | |
parent | 4c49b12853fbb5eff4849b7b6a1e895776f027a1 (diff) | |
parent | 156171c71a0dc4bce12b4408bb1591f8fe32dc1a (diff) | |
download | op-kernel-dev-39dc78b6510323848e3356452f7dab9499736978.zip op-kernel-dev-39dc78b6510323848e3356452f7dab9499736978.tar.gz |
Merge commit 'v2.6.32-rc7' into perf/core
Merge reason: pick up perf fixlets
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/ext4/inode.c')
-rw-r--r-- | fs/ext4/inode.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 5c5bc5d..2c8caa5 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -193,7 +193,7 @@ static int try_to_extend_transaction(handle_t *handle, struct inode *inode) * so before we call here everything must be consistently dirtied against * this transaction. */ - int ext4_truncate_restart_trans(handle_t *handle, struct inode *inode, +int ext4_truncate_restart_trans(handle_t *handle, struct inode *inode, int nblocks) { int ret; @@ -209,6 +209,7 @@ static int try_to_extend_transaction(handle_t *handle, struct inode *inode) up_write(&EXT4_I(inode)->i_data_sem); ret = ext4_journal_restart(handle, blocks_for_truncate(inode)); down_write(&EXT4_I(inode)->i_data_sem); + ext4_discard_preallocations(inode); return ret; } @@ -3445,8 +3446,6 @@ out: return ret; } -/* Maximum number of blocks we map for direct IO at once. */ - static int ext4_get_block_dio_write(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create) { @@ -3654,13 +3653,14 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset, ext4_io_end_t *io_end = iocb->private; struct workqueue_struct *wq; + /* if not async direct IO or dio with 0 bytes write, just return */ + if (!io_end || !size) + return; + ext_debug("ext4_end_io_dio(): io_end 0x%p" "for inode %lu, iocb 0x%p, offset %llu, size %llu\n", iocb->private, io_end->inode->i_ino, iocb, offset, size); - /* if not async direct IO or dio with 0 bytes write, just return */ - if (!io_end || !size) - return; /* if not aio dio with unwritten extents, just free io and return */ if (io_end->flag != DIO_AIO_UNWRITTEN){ @@ -3771,13 +3771,19 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb, if (ret != -EIOCBQUEUED && ret <= 0 && iocb->private) { ext4_free_io_end(iocb->private); iocb->private = NULL; - } else if (ret > 0) + } else if (ret > 0 && (EXT4_I(inode)->i_state & + EXT4_STATE_DIO_UNWRITTEN)) { + int err; /* * for non AIO case, since the IO is already * completed, we could do the convertion right here */ - ret = ext4_convert_unwritten_extents(inode, - offset, ret); + err = ext4_convert_unwritten_extents(inode, + offset, ret); + if (err < 0) + ret = err; + EXT4_I(inode)->i_state &= ~EXT4_STATE_DIO_UNWRITTEN; + } return ret; } |