On Wed, Mar 27, 2013 at 3:02 AM, majianpeng <[email protected]> wrote: > If fc->big_writes == 0, for write-operation it only do 4k in func > fuse_fill_write_pages. > So when alloc fuse_req,we should consider this restrict in order to > do additional operations. > The additional operations are memset-opeartion in func fuse_requenst_alloc > and alloc more space if nr_pages is larger than FUSE_REQ_MIN_PAGES.
Your mailer is removing whitespace from the patch. Anyway, I applied it by hand, thanks. Miklos > > Signed-off-by: Jianpeng Ma <[email protected]> > --- > fs/fuse/file.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/fs/fuse/file.c b/fs/fuse/file.c > index 34b80ba..c584a31 100644 > --- a/fs/fuse/file.c > +++ b/fs/fuse/file.c > @@ -912,8 +912,13 @@ static ssize_t fuse_perform_write(struct file *file, > do { > struct fuse_req *req; > ssize_t count; > - unsigned nr_pages = fuse_wr_pages(pos, iov_iter_count(ii)); > + unsigned nr_pages; > > + if (!fc->big_writes) > + nr_pages = 1; > + else > + nr_pages = fuse_wr_pages(pos, iov_iter_count(ii)); > + > req = fuse_get_req(fc, nr_pages); > if (IS_ERR(req)) { > err = PTR_ERR(req); > -- > 1.8.2.rc2.4.g7799588 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
