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    Subject[PATCH 1/2] netfs: release the folio lock and put the folio before retrying
    Date
    From: Xiubo Li <xiubli@redhat.com>

    The lower layer filesystem should always make sure the folio is
    locked and do the unlock and put the folio in netfs layer.

    URL: https://tracker.ceph.com/issues/56423
    Signed-off-by: Xiubo Li <xiubli@redhat.com>
    ---
    fs/netfs/buffered_read.c | 5 ++++-
    1 file changed, 4 insertions(+), 1 deletion(-)

    diff --git a/fs/netfs/buffered_read.c b/fs/netfs/buffered_read.c
    index 42f892c5712e..257fd37c2461 100644
    --- a/fs/netfs/buffered_read.c
    +++ b/fs/netfs/buffered_read.c
    @@ -351,8 +351,11 @@ int netfs_write_begin(struct netfs_inode *ctx,
    ret = ctx->ops->check_write_begin(file, pos, len, folio, _fsdata);
    if (ret < 0) {
    trace_netfs_failure(NULL, NULL, ret, netfs_fail_check_write_begin);
    - if (ret == -EAGAIN)
    + if (ret == -EAGAIN) {
    + folio_unlock(folio);
    + folio_put(folio);
    goto retry;
    + }
    goto error;
    }
    }
    --
    2.36.0.rc1
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