diff options
| author | Christoph Hellwig <hch@infradead.org> | 2013-11-14 08:50:28 -0800 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-04-03 10:32:14 +0200 |
| commit | 2fae4cc0d0b46c9ee3b95dfd0d22055066a71736 (patch) | |
| tree | a0bd39323148c8db0fe2d5feebbc77999e1d775d /fs | |
| parent | 2e3b72ab7008ddfad528d2711a8f95c9ef942f7b (diff) | |
nfs: fix size updates for aio writes
commit 9811cd57f4c6b5b60ec104de68a88303717e3106 upstream.
nfs_file_direct_write only updates the inode size if it succeeded and
returned the number of bytes written. But in the AIO case nfs_direct_wait
turns the return value into -EIOCBQUEUED and we skip the size update.
Instead the aio completion path should updated it, which this patch
does. The implementation is a little hacky because there is no obvious
way to find out we are called for a write in nfs_direct_complete.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/direct.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 91ff089d3412..df06e6b1952e 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -223,12 +223,23 @@ out: * Synchronous I/O uses a stack-allocated iocb. Thus we can't trust * the iocb is still valid here if this is a synchronous request. */ -static void nfs_direct_complete(struct nfs_direct_req *dreq) +static void nfs_direct_complete(struct nfs_direct_req *dreq, bool write) { + struct inode *inode = dreq->inode; + if (dreq->iocb) { + loff_t pos = dreq->iocb->ki_pos + dreq->count; long res = (long) dreq->error; if (!res) res = (long) dreq->count; + + if (write) { + spin_lock(&inode->i_lock); + if (i_size_read(inode) < pos) + i_size_write(inode, pos); + spin_unlock(&inode->i_lock); + } + aio_complete(dreq->iocb, res, 0); } complete_all(&dreq->completion); @@ -273,7 +284,7 @@ static void nfs_direct_read_completion(struct nfs_pgio_header *hdr) } out_put: if (put_dreq(dreq)) - nfs_direct_complete(dreq); + nfs_direct_complete(dreq, false); hdr->release(hdr); } @@ -435,7 +446,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq, } if (put_dreq(dreq)) - nfs_direct_complete(dreq); + nfs_direct_complete(dreq, false); return 0; } @@ -595,7 +606,7 @@ static void nfs_direct_write_schedule_work(struct work_struct *work) break; default: nfs_inode_dio_write_done(dreq->inode); - nfs_direct_complete(dreq); + nfs_direct_complete(dreq, true); } } @@ -612,7 +623,7 @@ static void nfs_direct_write_schedule_work(struct work_struct *work) static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode *inode) { nfs_inode_dio_write_done(inode); - nfs_direct_complete(dreq); + nfs_direct_complete(dreq, true); } #endif |