Please consider to port to PCS6. -- Best regards,
Konstantin Khorenko, Virtuozzo Linux Kernel Team On 12/05/2016 11:35 AM, Konstantin Khorenko wrote:
The commit is pushed to "branch-rh7-3.10.0-327.36.1.vz7.20.x-ovz" and will appear at https://src.openvz.org/scm/ovz/vzkernel.git after rh7-3.10.0-327.36.1.vz7.20.10 ------> commit 97825f6e3a3da5160d57663b0dcb83f942ca67c5 Author: Maxim Patlasov <mpatla...@virtuozzo.com> Date: Mon Dec 5 12:35:42 2016 +0400 fuse: fuse_prepare_write() should not wait on fuse-writeback The patch fixes a silly mistake: when fuse_prepare_write() calls __fuse_readpage(), the latter will do fuse_wait_on_page_writeback_or_invalidate anyway, so explicit fuse_wait_on_page_writeback is redundant. That silly mistake resulted in deadlock because, fuse_prepare_write used fuse_wait_on_page_writeback instead od smarter fuse_wait_on_page_writeback_or_invalidate. https://jira.sw.ru/browse/PSBM-56474 Signed-off-by: Maxim Patlasov <mpatla...@virtuozzo.com> --- fs/fuse/file.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 52bca91..641b570 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -2328,13 +2328,6 @@ static int fuse_prepare_write(struct fuse_conn *fc, struct file *file, return 0; } - /* - * Page writeback can extend beyond the liftime of the - * page-cache page, so make sure we read a properly synced - * page. - */ - fuse_wait_on_page_writeback(page->mapping->host, page->index); - num_read = __fuse_readpage(file, page, page_len, &err, &req, NULL, NULL); if (req) .
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