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NFS: nfs_async_write_reschedule_io must not recurse into the writeback code

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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: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2022-08-01 14:16:51 -04:00
parent 72691a269f
commit b1a28f2eb9
1 changed files with 0 additions and 2 deletions
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2
fs/nfs/write.c
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@ -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 = {