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See http://www.infradead.org/rpr.html X-Headers-End: 1q1i9C-0005hC-Ke Subject: [f2fs-dev] [PATCH 10/11] fuse: update ki_pos in fuse_perform_write X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Darrick J. Wong" , linux-mm@kvack.org, Andreas Gruenbacher , Miklos Szeredi , cluster-devel@redhat.com, Ilya Dryomov , linux-ext4@vger.kernel.org, linux-nfs@vger.kernel.org, linux-block@vger.kernel.org, Damien Le Moal , Alexander Viro , Jaegeuk Kim , ceph-devel@vger.kernel.org, Xiubo Li , Trond Myklebust , Jens Axboe , Christian Brauner , Theodore Ts'o , linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, Anna Schumaker , linux-fsdevel@vger.kernel.org, Andrew Morton Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net Both callers of fuse_perform_write need to updated ki_pos, move it into common code. Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal Reviewed-by: Hannes Reinecke --- fs/fuse/file.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 97d435874b14aa..90d587a7bdf813 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1329,7 +1329,10 @@ static ssize_t fuse_perform_write(struct kiocb *iocb, fuse_write_update_attr(inode, pos, res); clear_bit(FUSE_I_SIZE_UNSTABLE, &fi->state); - return res > 0 ? res : err; + if (!res) + return err; + iocb->ki_pos += res; + return res; } static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from) @@ -1375,41 +1378,35 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from) goto out; if (iocb->ki_flags & IOCB_DIRECT) { - loff_t pos = iocb->ki_pos; written = generic_file_direct_write(iocb, from); if (written < 0 || !iov_iter_count(from)) goto out; - pos += written; - - written_buffered = fuse_perform_write(iocb, mapping, from, pos); + written_buffered = fuse_perform_write(iocb, mapping, from, + iocb->ki_pos); if (written_buffered < 0) { err = written_buffered; goto out; } - endbyte = pos + written_buffered - 1; + endbyte = iocb->ki_pos + written_buffered - 1; - err = filemap_write_and_wait_range(file->f_mapping, pos, + err = filemap_write_and_wait_range(file->f_mapping, + iocb->ki_pos, endbyte); if (err) goto out; invalidate_mapping_pages(file->f_mapping, - pos >> PAGE_SHIFT, + iocb->ki_pos >> PAGE_SHIFT, endbyte >> PAGE_SHIFT); written += written_buffered; - iocb->ki_pos = pos + written_buffered; + iocb->ki_pos += written_buffered; } else { written = fuse_perform_write(iocb, mapping, from, iocb->ki_pos); - if (written >= 0) - iocb->ki_pos += written; } out: inode_unlock(inode); - if (written > 0) - written = generic_write_sync(iocb, written); - return written ? written : err; }