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Commit 58bda1da authored by Al Viro's avatar Al Viro
Browse files

fuse/dev: use atomic maps 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 8ffcb32e

fs/fuse/dev.c

+5 −5
Original line number Diff line number Diff line
@@ -669,13 +669,13 @@ static void fuse_copy_finish(struct fuse_copy_state *cs) 
		if (!cs->write) {

			buf->ops->unmap(cs->pipe, buf, cs->mapaddr);

		} else {

			kunmap(buf->page);

			kunmap_atomic(cs->mapaddr);

			buf->len = PAGE_SIZE - cs->len;

		}

		cs->currbuf = NULL;

		cs->mapaddr = NULL;

	} else if (cs->mapaddr) {

		kunmap(cs->pg);

		kunmap_atomic(cs->mapaddr);

		if (cs->write) {

			flush_dcache_page(cs->pg);

			set_page_dirty_lock(cs->pg);
@@ -706,7 +706,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs) 


			BUG_ON(!cs->nr_segs);

			cs->currbuf = buf;

			cs->mapaddr = buf->ops->map(cs->pipe, buf, 0);

			cs->mapaddr = buf->ops->map(cs->pipe, buf, 1);

			cs->len = buf->len;

			cs->buf = cs->mapaddr + buf->offset;

			cs->pipebufs++;
@@ -726,7 +726,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs) 
			buf->len = 0;



			cs->currbuf = buf;

			cs->mapaddr = kmap(page);

			cs->mapaddr = kmap_atomic(page);

			cs->buf = cs->mapaddr;

			cs->len = PAGE_SIZE;

			cs->pipebufs++;
@@ -745,7 +745,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs) 
			return err;

		BUG_ON(err != 1);

		offset = cs->addr % PAGE_SIZE;

		cs->mapaddr = kmap(cs->pg);

		cs->mapaddr = kmap_atomic(cs->pg);

		cs->buf = cs->mapaddr + offset;

		cs->len = min(PAGE_SIZE - offset, cs->seglen);

		cs->seglen -= cs->len;