Commit b1a28f2e authored by Trond Myklebust's avatar Trond Myklebust
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NFS: nfs_async_write_reschedule_io must not recurse into the writeback code 



It is not safe to call filemap_fdatawrite_range() from
nfs_async_write_reschedule_io(), since we're often calling from a page
reclaim context. Just let fsync() redrive the writeback for us.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent 72691a26

fs/nfs/write.c

+0 −2
Original line number Diff line number Diff line
@@ -1444,8 +1444,6 @@ static void nfs_async_write_error(struct list_head *head, int error) 
static void nfs_async_write_reschedule_io(struct nfs_pgio_header *hdr)

{

	nfs_async_write_error(&hdr->pages, 0);

	filemap_fdatawrite_range(hdr->inode->i_mapping, hdr->args.offset,

			hdr->args.offset + hdr->args.count - 1);

}



static const struct nfs_pgio_completion_ops nfs_async_write_completion_ops = {